94420 + Interview Questions in Chemistry in Class 12

1.	Assertion : Graphite is a good conductor of electricity however diamond belongs to the category of insulators. Reason: Graphite is soft in nature on the other hand diamond is very hard and brittle.
Answer» Assertion and reason both are correct statement and reason is correct EXPLANATION for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Solution :GRAPHITE is a good conductor of electricity because CARBON atom is `sp^2` hybridized. Hence, one electron on each carbon atom is FREE to move about .

Discussion

2.	Assertion. Goldandplatiniumoccurin nativestate. Reason. Goldand platiniumarenotattackedby moisture, oxygenandcarbondioxideofthe atmosphere.
Answer» Ifbothassertionandreasonaretrue, ANDREASON is NOTTHE trueexplanationofthe ASSERTION. Ifbothassertionandreasonaretrue,butreasonis notthetrueexplanationoftheassertion. Ifassertionis TRUE,butreason isfalse If bothassertionandreasonarefalse ANSWER :A

Discussion

3.	Assertion: Gold is recoverd from its solution containing aurocyanide complex its solution containing. Reason: Zinc is more electropositive htan gold.
Answer» If both assertion and reason are true and the reason is not the correct explanation of the assertion If both assertion and reason are true but and reason is the correct explanation of the assertion If assertion is true but reason is false. If the assertion and reason both are false Solution :Au is rconverved from the solution by the addtion of electrophpositive METAL. `2NaAu(CU)_(2)+Zntounderset("SOLUBLE COMPLEX")(Na_(2)Zn(Cn)_(4))+2Audarr`

Discussion

4.	Assertion: Glypal is obtained by condensation polymerization of ethyleneglycol and terephthalic acid. Reason : Glyptal is used in the manufacture of fabrics.
Answer» If both ASSERTION and reason are true , and reason is the true EXPLANATION of the assertion. If both assertion and reason are true , but reason is not the true explanation of the assertion. If assertion is true , but reason is false. If both assertion and reason are false. Solution :Correct assertion : GLYPTAL is obtained by condensation polymerization of ethylene glycol and PHTHALIC ACID. Correct reason : Glyptal is used in the manufacture of paints and lacquers.

Discussion

5.	Assertion : Glycosides are hydrolysed in acidic conditions. Reason : Glycosides are acetals.
Answer» If both assertion and REASON are TRUE , and is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assertion. If ASSERATION is true , but reason is false. If both assertion and reason are false. Answer :A

Discussion

6.	Assertion : Glycine must be taken thorough diet. Reason : It is an essential amino acid.
Answer» Assertion and reason both are correct statements and reason explains the assertion. Both assertion and reason are wrong statements. Assertion is correct statement and reason is wrong statement. Assertion is wrong statement and reason is correct statement. SOLUTION :Correct assertion . Glycine may or may not be TAKEN in diet. Correct reason . It is not an essential `alpha`-AMINO ACID.

Discussion

7.	Assertion. Glycine forms a chelate with Cu^(2+) ion. Reason. Glycine is a bidentate ligand and thus forms a closed ring structure with the metal ion.
Answer» If both ASSERTION and REASON are TRUE, but reason is not the true explanation of the assertion If both assertion and reason are true, but reason is not the true explanation of the assertion If assertionis true, but reason is false If both assertion and reason are false Solution :R is the correct explanation of A.

Discussion

8.	Assertion : Glycine is amphoteric in nature . Reason: Glycine contain both acid and basis group.
Answer» If both ASSERTION and REASON are true and the reason is the correct EXPLANATION of the assertion. If both assertion and reason are true but reason is not the corret explanation of the assertion. If assertion is true but reason is false. If the assertion and the reason both are false. Solution :Glycine is an amino acid, it contains both `NH_(2)` as well as -COOH group and therefore, its aqueous solution form Zwitter ion which is amphoteric in NATURE. ltbRgt `underset("Glycine")(NH_(2)CH_(2)COOH)"" underset("Zwitter ion")(NH_(3)^(+)CH_(2)COO^(-))` Therefore, both assertion and reason are true.

Discussion

9.	Assertion : Glyceraldehyde reactswith Br_(2)//H_(2)O to form achiral compound Reason : -CHO and -CH_(2)OH both are oxidized
Answer» ANSWER :3

Discussion

10.	Assertion : Glucose reacts with phenyl hydrazine and Fehling's solution but not with NaHSO_(3). Reason: NaHSO_(3) cannot break the ring structure.
Answer» If both assertion and reason are true and reason is the CORRECT explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false. If both assertion and reason are false. Solution :Despite having the aldehyde group GLUCOSE does not give 2,4 DNP test, SCHIFF's test and it does not form the hydrogensulphite ADDITION product with `NaHSO_(3)`

Discussion

11.	Assertion : Glucose is correctly named as D-(+)-glucose. ' 3 Reason : ‘D’ before the name of glucose represents its dextrorotatory nature.
Answer» If both ASSERTION and REASON are TRUE and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false. If both assertion and reason are false. Answer :C

Discussion

12.	Assertion :- Glucose, Na^() and anibi acids are absorbed activity. Reason :-Na^() , glucose and amino acids are move against the concentration gradient and hence require energy.
Answer» If both ASSERTION & Reason are TRUE & the Reason is a CORRECT explanation of the Assertion. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion. If Assertion is True but the Reason is False. If both Assertion & Reason are False Answer :A

Discussion

13.	Assertion : Glucose gives a reddish brown precipitate with Fehiling's solution. Reason : Reaction of glucose with Fehiling's solution gives CuO and gluconic acid.
Answer» If both assertion and reason are correct and reason is correct EXPLANATION for assertion. If both assertion and reason are correct but reason is not correct explanation for assertion. If assertion is correct but reason is incorrect. If assertion and reason are both incorrect. Solution :Correct Reason. Reaction of glucose with Fehiling's solution GIVES `Cu_(2)O` and gluconic ACID.

Discussion

14.	Assertion : Glucose given reddish brown precipitate with Fehiling's solution. Reason : Reaction of glucose with Fehling's solution gives Cu_(2)O and gluconic acid.
Answer» If both ASSERTION and REASON are CORRECT and reason is correct EXPLANATION for assertion. If both assertion and reason are correct but reason is not correct explanation for assertion. If assertion is correct but reason is incorrect. If assertion and reason are both incorrect. Solution :Reason is the correct explanation for assertion.

Discussion

15.	Assertion : Glucose gets oxidised to gluconic acid on reaction with mild oxidising agent like bromine water. Reason : Glucose contains a keto group.
Answer» If both assertion and reason are true and reason is the CORRECT EXPLANATION of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false. If both assertion and reason are false. Solution :Glucose on mld oxidation GIVES six carbon carboxylic ACID (GLUCONIC acid) which indicates it contains aldehydic group.

Discussion

16.	Assertion: Geometrical isomerism is shown by complexes with coordination number 6. Reason: Because it has d^(2)sp^(3) type hybridisation.
Answer» Assertion and REASON both are TRUE, reason is correct explanation of assertion. Assertion and reason both are true but reason is not the correct explanation of assertion. Assertion is true, reason is false Assertion is false, reason is true. Solution :d) correct Assertion: `[FE(CN)_(6)]^(3-)` ION shows magnetifc moment corresponding to one UNPAIRED electron.

Discussion

17.	Assertion: Geometrical isomers of Co(NH_3)_4Cl_2^+differ in their colours Reason:All geometrical isomers of compounds have different colours.
Answer» Both ASSERTION & REASON are TRUE ,Reason is the correct EXPLANATION of Assertion Both Assertion & Reason are true, Reason is not correct explanation of Assertion Assertion is true , Reason is false Assertion is false , Reason is false Answer :C

Discussion

18.	Assertion : Geometry of IC l_(3) is tetrahedral. Reason : Its shape is T-shape, due to the presence of two lone pairs.
Answer» If assertion is true but the reason is FALSE If assertion is false but reason is true IF both assertion and reason are true and the reason is the CORRECT explanation of assertion If both assertion and reason are true but reason is not the correct explanation of assertion Answer :B

Discussion

19.	Assertion : Gases such as SO_2, NH_3, HClare easily adsorbed. Reason : Adsorption is a surface phenomenon
Answer» (A) and (R) are true and (R) is the correct EXPLANATION of (A) Both (A) and (R) are true but (R) does not explain (A) (A) is true but (R) is FALSE Both (A) and (R) are false Answer :B

Discussion

20.	Assertion. Gay Lussac's law does not follow from Dalton's atomic theory. Reason. Dalton's atomic theory explains law of chemical combination by mass only.
Answer» If both ASSERTION and REASON are TRUE, and reason is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assetion. If assertion is true, but reason if false If both assertion and reason are false. Solution :R is the correct explanation of A.

Discussion

21.	Assertion : Gases combine in simple ratio of their volume but, not always. Reason : Gases deviate from ideal behaviour.
Answer» If both ASSERTION and REASON are TRUE and the reason is the CORRECT EXPLANATION of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false. If the assertion and reason both are false. Solution :Both assertion and reason are true and reason is the correct explanation of assertion.

Discussion

22.	Assertion : Gas - Gas colliodal system does not exist. Reason : Gases are completely miscible and form a true solution.
Answer» (A) and (R) are TRUE and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) does not explain (A) (A) is true but (R) is FALSE Both (A) and (R) are false Answer :A

Discussion

23.	Assertion: Galvanished iron does not rust. Reason: Zinc ha a more negative electrode potential than iron.
Answer» if both assertion and reason are true and the reason is the correct explanation of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false If the assertion and reason both are false. Solution :Zinc metal which has a more negative electrode potential than iron will PROVIDE electrons in preference of the iron, and therefore CORRODE FIRST. Only when all the zinc has been oxidised does the iron start to RUST.

Discussion

24.	Assertion : Galvanising is the process of coating iron and steel with metallic zinc. Reason : Highly resistant to rusting and corrosion.
Answer» Both (A) and (R ) are TRUE and (R ) is the CORRECT EXPLANATION of (A). Both (A) and (R ) are true and (R ) is not the correct explanation of (A). (A) true but (R ) false. Both (A) and (R ) are false. Answer :A

Discussion

25.	Assertion: Galvanised iron does not rust. Reason: Zinc has a more negative electrode potential than iron.
Answer» If both assertion and reason are true, and reason is the true EXPLANATION of the assertion if both assertion and reason are true, but reason is not the true explanation of the assertion. if assertion is true, but reason is false. If both assertion and reason are false. Solution :R is the correct explanation of A (More negative ELECTRODE potential of ZINC means higher oxidation potential. Hence, zinc is more easily OXIDIZED than iron).

Discussion

26.	Assertion : Galvanisation of iron protects it from rust Reason : Zinc had lower reduction potential than iron
Answer» (A) and (R) are TRUE and (R) is the CORRECT EXPLANATION of (A) Both (A) and (R) are true but (R) does not explain (A) (A) is true but (R) is false Both (A) and (R) are false Answer :A

Discussion

27.	Assertion: Galvanic cells containing hydrogen, methane, methanol etc. as fuels are called fuel cells. Reason: They are designed to convert the energy of combustion of fuels directly into electrical energy.
Answer» if both ASSERTION and REASON are TRUE and the reason is the correct explanation of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false If the assertion and reason both are false. Answer :A

Discussion

28.	Assertion: Gabriel phthalimide reaction can be used to prepare aryl and alkyl amines. Reason: Aryl halides have same reactivity as alkyl halides towards nucleophilic substitution reactions.
Answer» If both assertion and reason are TRUE, and reason is the true explanation of the assertion. If both assertion and reason are ture, but reason is not the true explanation of the assertion. If assertion is true, but reason is false. If both assertion and reason are false. Solution :Correct assertion: Gabriel PHTHALIMIDE reaction can be used to prepare only primary alkyl AMINES and not ARYLAMINES. Correct reason: Alkyl halides undergo nucleo-philic substitution reactions but aryl halides do not.

Discussion

29.	Assertion : Fructose does not contain as aldehyde group but still reduces Tollens' reagent. Reason : In presence of a base , fructose undergoes a rearrangement to form glucose and mannose.
Answer» If both ASSERTION and REASON are true , and is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assertion. If ASSERATION is true , but reason is false. If both assertion and reason are false. ANSWER :A

Discussion

30.	Assertion : Fructose does not contain aldehyde group but still reduce Tollen's reagent. Reason : In the presence of base, fructose undergoes rearrangement to form glucose and mannose.
Answer» Assertion and reason both are CORRECT and reason is the CORRECT EXPLANATION of the assertion. Assertion and reason both are wrong STATEMENTS. Assertion is correct STATEMENT but reason is wrong statement. Assertion is wrong statement but reason is correct statement. ANSWER :A

Discussion

31.	Assertion : Fullerene is the purest allotrope of carbon. Reason : They have smooth structure without dangling bonds.
Answer» Both ASSERTION and reason are true and the reason is the correct explanation of the assertion. Both the assertion and reason are true but the reason is not the correct explanation of the assertion. Assertion is true but reason is false. Both assertion and reason are false. ANSWER :A

Discussion

32.	Assertion:- Fructose does not contain an aldehyde group but still reduce tollen's reagent. Reason:- In presence of dilute solution of alkali, fructose undergoes epimerisation to form glucose and mannose.
Answer» If both ASSERTION `&` REASON are TRUE `&` the Reason is a CORRECT EXPLANATION of the Assertion. If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion. If Assertion is True but the Reason is False. If both Assertion `&` Reason are False. Answer :A

Discussion

33.	Assertion: Frenkel defects is exhibited by alkali halides Reason : Alkali ions have small size.
Answer» Both ASSERTION and REASON are TRUE and reason is the correct EXPLANATION of assertion. Both assertion and reason are true but reason is not the correct explanation of assertion. Assertion is true but reason is false Both assertion and reason are false. Answer :d

Discussion

34.	Assertion : Formic acid reduces Tollens reagent. Reason : Formic acid contains an aldehyde as well as acid group.
Answer» (A) and ( R) are TRUE and ( R) is the correct EXPLANATION of (A) Both (A) and ( R) are true but ( R) does not EXPLAIN (A) (A) is true but ( R) is false Both (A) and ( R) are false ANSWER :A

Discussion

35.	Assertion : Free radicals are short lived and highly reactive. Reason : Free radicals are highly unstable.
Answer» If both ASSERTION and reason are true and the reason is the correct EXPLANATION of the assertion If both assertion and reason are true and the reason is not the correct explanation of the assertion. If assertion is true but reason is false. If the assertion and reason both are false. Solution :Since free radicals contain odd electrons, so they are short lived and they readily TRY to PAIR up the odd electrons to form neutral molecules, that is why they are highly reactive.

Discussion

36.	Assertion: formic acid reduces Tollens' reagent. Reason: Compounds containing CHO group reduce tollens' reagent.
Answer» if both ASSERTION and reson are true, and REASON is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assertion. if assertion is true, but reason is false. If both assertion and reason are false. Solution :CORRECT explanation. HCOOH acts as a reducing agent because it can be EASILY oxidised to `CO_(2) and H_(2)O` and hence reduces Tollens' reagent.

Discussion

37.	Assertion : Formation of rust requires both oxygen and water. Reason : The oxidising tendency of iron can be reduced by formation of its alloy with anodic metals
Answer» (A) and (R) are TRUE and (R) is the CORRECT explanation of (A) Both (A) and (R) are true but (R) does not explain (A) (A) is true but (R) is false Both (A) and (R) are false Answer :B

Discussion

38.	Assertion : Formation of PH_(4)^(+) ion is relatively difficult in comparison to NH_(4)^(+) ion. Reason : Lone pair of phosphorus atom in PH_(3) resides in stereochemically inactive pure s-orbital.
Answer» If ASSERTION is true but the reason is FALSE If assertion is false but reason is true If both assertion and reason are true and the reason is the CORRECT EXPLANATION of assertion If both assertion and reason are true and the reason is not the correct explanation of assertion Answer :C

Discussion

39.	Assertion: Formation of Cl^(-) ion is exothermic wheres O^(2-) ion formation is endothermic. Reason: EA_(2) of oxygen is endothermic and greater than its exothermic EA_(1) value of oxygen.
Answer» If both ASSERTION and REASON are TRUE ANND the reason is the correct EXPLANATION of assertion If both assertion and reason are true but reason is not the correct explanation of assertion If assertion is true but the reason is false if assertion is false but the reason is true Answer :A

Discussion

40.	Assertion: Formaldehyde cannot be prepared by Rosenmund's reduction. Reason: Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.
Answer» If both ASSERTION and reason are true and the reason is the correct EXPLANATION of the assertion If both assertion and reason are true but reason is not the correct explanation of the assertion If assertion is true but reason is false If the assertion and reason both are false Solution :HCHO cannot be prepared by ROSENMUND's reduction because formyl chloride in unstable at ROOM TEMPERATURE.

Discussion

41.	Assertion: Formaldehyde is a planar molecule. Reason: It contains sp^(2) hybridised carbon atom.
Answer» Assertion and REASON both are correct and reason is correct EXPLANATION of assertion. Assertion and reason both are WRONG STATEMENT. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Solution :Reason is the correct explanation of assertion.

Discussion

42.	Assertion : For two solutions, 0.1m aqueous solution of glucose and 0.1 m urea in benzene, the lowering of vapour pressure is same. Reason :Vapour pressure is always lowered when volatile solute is added to water
Answer» Both Assertion and REASON are true and Reason is the CORRECT explanation of Assertion Both Assertion and Reason are true and Reason is not the correct explanation of Assertion Assertion is true but Reason is false Both Assertion and Reason are false Answer :D

Discussion

43.	Assertion: For the reaction RCl + NAOH(aq) rarr ROH + NACl, the rate of reaction is reduced to half on reducing the concentration of RCl to half. Reason: The rate of the reaction is represented by k[RCl] i.e., it is a first-order reaction.
Answer» If both assertion and REASON are true and the reason is the correct EXPLANATION of the assertion. If both assertion and reason are true but the reason is not the correct explanation of the assertion. If assertion is true but reason is false. If assertion is false but reason is true. Solution :Correct Reason The RATE of reaction is represented by `k[RCl] [NaOH]`, i.e., it is a second ORDER reaction.

Discussion

44.	Assertion : For the reaction N_(2(g))+3H_(2(g))hArr2NH_(3(g)) Unit of K_(c)=L^(2)mol^(-2) Reason: For the reaction N_(2(g))+3H_(2(g))hArr2NH_(3(g)) Equlibrium constant, K_(c)=([NH_(3)]^(2))/([N_(2)][H_(2)]^(3))
Answer» If both asserrion and are true and the REASON is the CORRECT explanation of the ASSERTION. If both assertion and reason are true but reason is not the assertion. If assertion is true but reason is FALSE. If the assertion and reason both are false. Answer :B

Discussion

45.	Assertion. For the reaction "RCl"+"NaOH(aq)" to "ROH"+"NaCl", the rate of reacction is reduced to half on reducing the concentration of RCl to half. Reason. The rate of the reaction is represented by k [RCl], i.e., it is a first order reaction.
Answer» If both ASSERTION and REASON are true and reason is the true explanation of the assertion. If both assertion and reason ae true but reason is not the true explanation of the assertion. If assertion is true, but reason is false. If both assertion and reason are false. Solution :Correct R. The rate of REACTION is REPRESENTED by k [RCl] [NaOH], i.e., it is a second ORDER reaction.

Discussion

46.	Assertion : For the reaction CHCI_(3) + CI_(2) to CCI_(4) HCI Rate = k[CHCI_(3)][CI_(2)]^(1//2) Reason : Rate of reaction is always equals to the sum of the stoichiometic coefficients of the reacting species in a balanced chemical equation.
Answer» If both assertion and REASON are true and reason is the correct EXPLANATION of assertion. If both assertion and reason are true butreason is not the correct explanation of assertion. If assertion is true but reason is false. If both assertion and reason are false. Solution :Rate of reaction depends upon the experimental conditions such as concentration of reactants, temperature and CATALYST. It may or may not be equal to the STOICHIOMETRIC coeffieicents of the reacting SPECIES in a balanced chemcial equation.

Discussion

47.	Assertion: For the Daniel cell, Zn\|Zn^(2+)\|\|Cu^(2+)\|Cu with E_(cell)=1.1V, the application of opposite potential greater than 1.1V results into flow of electrons from cathode to anode.
Answer» If both assertion and reason are true, and reason is the true EXPLANATION of the assertion if both assertion and reason are true, but reason is not the true explanation of the assertion. if assertion is true, but reason is false. If both assertion and reason are false. Solution :Correct Explanation. On applyng external voltage greater than 1.1 V in the daniell cell, the electrons flow in the reverse direction, i.e., from CATHODE `(Cu^(2+)//Cu)` to ANODE `(ZN//Zn^(2+))`. The reverse reaction takes place (i.e., `Zn^(2+)+CutoZn+Cu^(2+)`)

Discussion

48.	Assertion: For the Daniel cell Zn\|Zn^(2+)\|\|Cu^(2+)\|Cu with E_(cell)=1.1V, the application of opposite potential greater than 1.1 V results into flow of electron from cathode to anode. Reason: Zn is deposited at anode and Cu is dissolved at cathode.
Answer» if both ASSERTION and reason are TRUE and the reason is the correct EXPLANATION of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false If the assertion and reason both are false. Answer :A

Discussion

49.	Assertion : For the combustion of methane, DeltaE gt DeltaH. Reason : DeltaH is related by DeltaE by the expression DeltaH=DeltaE+DeltanRT
Answer» <P>If both assertion and reason are true and the reason is the CORRECT explanation of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion If assertion is true but reason is false If the assertion and reason both are false. Solution :Combustion of METHANE is `CH_(4)+2O_(2)rarrCO_(2)+2H_(2)O`The relation between `DeltaH` and `DELTAE` is `DeltaH=DeltaE+DeltanRT` `Deltan=n_(p)-n_(r)=1-3=-2` `DeltaH=DeltaE-2T` So, `DeltaH lt DeltaE` Hence, reason is correct explanation of assertion.

Discussion

50.	Assertion : For the Daniel cell, Zn//Zn^(2+)\|\|Cu^(2+)\|Cu" with "E_(cell)=1.1V results into flow of electron from cathode to anode. Reason : Zn is deposited at anode and Cu is dissolved at cathode.
Answer» if both Assertion and Reason are true andreason is the correct explanation of the assertion. if bothassertion and reason are true but reason isnot the correct expalanation of the assertion if assertion is true, reason is FALSE both assertion and reason are false statements. Solution :If the opposing potential becomes slightly LARGER than than cell, the direction, of current FLOWS is reversed and so is the cell reaction. Now zinc are aconverted to zinc at one electronde and Cu is CONVERTED into copper ion and the overall. Cell reaction becomes. `Zn^(++)+Cu to Zn +Cu^(++)`

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Assertion : Graphite is a good conductor of electricity however diamond belongs to the category of insulators. Reason: Graphite is soft in nature on the other hand diamond is very hard and brittle.

Assertion. Goldandplatiniumoccurin nativestate. Reason. Goldand platiniumarenotattackedby moisture, oxygenandcarbondioxideofthe atmosphere.

Assertion: Gold is recoverd from its solution containing aurocyanide complex its solution containing. Reason: Zinc is more electropositive htan gold.

Assertion: Glypal is obtained by condensation polymerization of ethyleneglycol and terephthalic acid. Reason : Glyptal is used in the manufacture of fabrics.

Assertion : Glycosides are hydrolysed in acidic conditions. Reason : Glycosides are acetals.

Assertion : Glycine must be taken thorough diet. Reason : It is an essential amino acid.

Assertion. Glycine forms a chelate with Cu^(2+) ion. Reason. Glycine is a bidentate ligand and thus forms a closed ring structure with the metal ion.

Assertion : Glycine is amphoteric in nature . Reason: Glycine contain both acid and basis group.

Assertion : Glyceraldehyde reactswith Br_(2)//H_(2)O to form achiral compound Reason : -CHO and -CH_(2)OH both are oxidized

Assertion : Glucose reacts with phenyl hydrazine and Fehling's solution but not with NaHSO_(3). Reason: NaHSO_(3) cannot break the ring structure.

Assertion : Glucose is correctly named as D-(+)-glucose. ' 3 Reason : ‘D’ before the name of glucose represents its dextrorotatory nature.

Assertion :- Glucose, Na^(*) and anibi acids are absorbed activity. Reason :-Na^(*) , glucose and amino acids are move against the concentration gradient and hence require energy.

Assertion : Glucose gives a reddish brown precipitate with Fehiling's solution. Reason : Reaction of glucose with Fehiling's solution gives CuO and gluconic acid.

Assertion : Glucose given reddish brown precipitate with Fehiling's solution. Reason : Reaction of glucose with Fehling's solution gives Cu_(2)O and gluconic acid.

Assertion : Glucose gets oxidised to gluconic acid on reaction with mild oxidising agent like bromine water. Reason : Glucose contains a keto group.

Assertion: Geometrical isomerism is shown by complexes with coordination number 6. Reason: Because it has d^(2)sp^(3) type hybridisation.

Assertion: Geometrical isomers of Co(NH_3)_4Cl_2^+differ in their colours Reason:All geometrical isomers of compounds have different colours.

Assertion : Geometry of IC l_(3) is tetrahedral. Reason : Its shape is T-shape, due to the presence of two lone pairs.

Assertion : Gases such as SO_2, NH_3, HClare easily adsorbed. Reason : Adsorption is a surface phenomenon

Assertion. Gay Lussac's law does not follow from Dalton's atomic theory. Reason. Dalton's atomic theory explains law of chemical combination by mass only.

Assertion : Gases combine in simple ratio of their volume but, not always. Reason : Gases deviate from ideal behaviour.

Assertion : Gas - Gas colliodal system does not exist. Reason : Gases are completely miscible and form a true solution.

Assertion: Galvanished iron does not rust. Reason: Zinc ha a more negative electrode potential than iron.

Assertion : Galvanising is the process of coating iron and steel with metallic zinc. Reason : Highly resistant to rusting and corrosion.

Assertion: Galvanised iron does not rust. Reason: Zinc has a more negative electrode potential than iron.

Assertion : Galvanisation of iron protects it from rust Reason : Zinc had lower reduction potential than iron

Assertion: Galvanic cells containing hydrogen, methane, methanol etc. as fuels are called fuel cells. Reason: They are designed to convert the energy of combustion of fuels directly into electrical energy.

Assertion: Gabriel phthalimide reaction can be used to prepare aryl and alkyl amines. Reason: Aryl halides have same reactivity as alkyl halides towards nucleophilic substitution reactions.

Assertion : Fructose does not contain as aldehyde group but still reduces Tollens' reagent. Reason : In presence of a base , fructose undergoes a rearrangement to form glucose and mannose.

Assertion : Fructose does not contain aldehyde group but still reduce Tollen's reagent. Reason : In the presence of base, fructose undergoes rearrangement to form glucose and mannose.

Assertion : Fullerene is the purest allotrope of carbon. Reason : They have smooth structure without dangling bonds.

Assertion:- Fructose does not contain an aldehyde group but still reduce tollen's reagent. Reason:- In presence of dilute solution of alkali, fructose undergoes epimerisation to form glucose and mannose.

Assertion: Frenkel defects is exhibited by alkali halides Reason : Alkali ions have small size.

Assertion : Formic acid reduces Tollens reagent. Reason : Formic acid contains an aldehyde as well as acid group.

Assertion : Free radicals are short lived and highly reactive. Reason : Free radicals are highly unstable.

Assertion: formic acid reduces Tollens' reagent. Reason: Compounds containing CHO group reduce tollens' reagent.

Assertion : Formation of rust requires both oxygen and water. Reason : The oxidising tendency of iron can be reduced by formation of its alloy with anodic metals

Assertion : Formation of PH_(4)^(+) ion is relatively difficult in comparison to NH_(4)^(+) ion. Reason : Lone pair of phosphorus atom in PH_(3) resides in stereochemically inactive pure s-orbital.

Assertion: Formation of Cl^(-) ion is exothermic wheres O^(2-) ion formation is endothermic. Reason: EA_(2) of oxygen is endothermic and greater than its exothermic EA_(1) value of oxygen.

Assertion: Formaldehyde cannot be prepared by Rosenmund's reduction. Reason: Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.

Assertion: Formaldehyde is a planar molecule. Reason: It contains sp^(2) hybridised carbon atom.

Assertion : For two solutions, 0.1m aqueous solution of glucose and 0.1 m urea in benzene, the lowering of vapour pressure is same. Reason :Vapour pressure is always lowered when volatile solute is added to water

Assertion: For the reaction RCl + NAOH(aq) rarr ROH + NACl, the rate of reaction is reduced to half on reducing the concentration of RCl to half. Reason: The rate of the reaction is represented by k[RCl] i.e., it is a first-order reaction.

Assertion : For the reaction N_(2(g))+3H_(2(g))hArr2NH_(3(g)) Unit of K_(c)=L^(2)mol^(-2) Reason: For the reaction N_(2(g))+3H_(2(g))hArr2NH_(3(g)) Equlibrium constant, K_(c)=([NH_(3)]^(2))/([N_(2)][H_(2)]^(3))

Assertion. For the reaction "RCl"+"NaOH(aq)" to "ROH"+"NaCl", the rate of reacction is reduced to half on reducing the concentration of RCl to half. Reason. The rate of the reaction is represented by k [RCl], i.e., it is a first order reaction.

Assertion : For the reaction CHCI_(3) + CI_(2) to CCI_(4) HCI Rate = k[CHCI_(3)][CI_(2)]^(1//2) Reason : Rate of reaction is always equals to the sum of the stoichiometic coefficients of the reacting species in a balanced chemical equation.

Assertion: For the Daniel cell, Zn|Zn^(2+)||Cu^(2+)|Cu with E_(cell)=1.1V, the application of opposite potential greater than 1.1V results into flow of electrons from cathode to anode.

Assertion: For the Daniel cell Zn|Zn^(2+)||Cu^(2+)|Cu with E_(cell)=1.1V, the application of opposite potential greater than 1.1 V results into flow of electron from cathode to anode. Reason: Zn is deposited at anode and Cu is dissolved at cathode.

Assertion : For the combustion of methane, DeltaE gt DeltaH. Reason : DeltaH is related by DeltaE by the expression DeltaH=DeltaE+DeltanRT

Assertion : For the Daniel cell, Zn//Zn^(2+)||Cu^(2+)|Cu" with "E_(cell)=1.1V results into flow of electron from cathode to anode. Reason : Zn is deposited at anode and Cu is dissolved at cathode.

Assertion :- Glucose, Na^() and anibi acids are absorbed activity. Reason :-Na^() , glucose and amino acids are move against the concentration gradient and hence require energy.