94420 + Interview Questions in Chemistry in Class 12

1.	E_(Ag^(+),Ag)^(0) = 0.8 V . Calculate the single electrode potential in 0.01 M Ag^(+)
Answer» ANSWER :

Discussion

2.	Eacof nucleophilic substitution among these compounds will be in the order.
Answer» IIgtIIIgtIVgtVgtI IgtIIgtIIIgtIVgtV VgtIIgtIIIgtIgtIV IVgtIIIgtIIgtIgtV Answer :C

Discussion

3.	Each unit cell of NaCl consists of 4 chloride ions and -
Answer» 13 Na atoms 4 Na IONS 6 Na atoms 8 Na atoms Answer :B

Discussion

4.	Each unit cell of NaCl consists of 13Cl6(-) ions and
Answer» `13Na^(+)` `14Na^(+)` `6Na^(+)` All are wrong SOLUTION :`13Cl^(-)` IONS means that they are PRESENT at the EDGE centres and body-centre. Hence, `Na^(+)` ions are present at the corners and face-centres . Total `Na^(+)` ions `=8+6=14` .

Discussion

5.	Each unit cell of NaCI consists of 4 chloride ions and:
Answer» 13 NA atoms 4 Na ions 6 Na atoms 8 Na atoms Answer :B

Discussion

6.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : The compound CH_(3)-underset(ch_(3))underset(\|)overset(CH_(3))overset(\|)C-OH is called tert-butyl alcohol which give Lucas test immediately. STATEMENT - 2 : Because 3^(@) alcohol gives instant turbidity with ZnCl_(2) + conc. HCl.
Answer» Statement -1 is TRUE, Statement-2 is True ,Statement -2 is a CORRECT EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

7.	Each transition series contains:
Answer» 12 elements 10 elements 14 elements 8 elements Answer :B

Discussion

8.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Pure and oxidised CHCl_(3) can be differentianted by aq. AgNO_(3) STATEMENT - 2 : Pure CHCl_(3) gives white ppt. with aq.AgNO_(3)but oxidised CHCl_(3) does not.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a CORRECT EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

9.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Solubility of an amino acid is maximu at isoelectric point. STATEMENT - 2 : At isoelectric point amino acods exists as zwitter ion.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

10.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Per molecule of glucose consumes two molecules of Ph-NH-NH_(2) during formation of osazone. STATEMENT - 2 : Structure of glucose osazone is :
Answer» STATEMENT -1 is TRUE, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :3 MOLES of `Ph-NHNH_(2)` are consumed.

Discussion

11.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Prolin and alanine can be differentiated by ninhydrin test. STATEMENT - 2 : Prolin is a cycliccompound wheweas alanin is open chain
Answer» STATEMENT -1 is TRUE, Statement-2 is True ,Statement -2 is a correct EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

12.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : p-amino benzoic acid do not exists as zwitter ion. STATEMENT - 2 : Acidic and groups in this compound are too far from each other to react, so they can't form salt.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :p-amino BENZENE ACID do not exist as zwitter ion as it is having weak acid and weak base which do not from salt with each other.

Discussion

13.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Oecron an complete hydrolysis produce ethulene glycol and phthalic acid. STATEMENT - 2 : Oecron is a copolymer.
Answer» STATEMENT -1 is TRUE, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :It gives teraphthatic acid and ethylene glycol.

Discussion

14.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : NH_(2)-NH_(2) gives prussian blue colour during Lassaigne test (element detection test). STATEMENT - 2 : NaCN gives prussian blue colour of Fe_(4)[Fe(CN_(6))]_(3)"with" FeSO_(4),FeCl_(3)
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

15.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Number averge and mass average polymeric mass is mearly same in most of natural polymers. STATEMENT - 2 : Number of monomeric units are nearly mass is most of the matural polymers.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

16.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Molecular mass of addition polymer is always greater than condensation polymer. STATEMENT - 2 : Smallar unit like H_(2)O or NH_(3) is eliminated in every chain growth step during formation of condensation polymer.
Answer» Statement -1 is True, Statement-2 is True ,Statement -2 is a CORRECT EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

17.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Molecular mass of D-glucoseincreses by 210 on treatment with excess acetic anhydride. STATEMENT - 2 : D-glucose principally exists in cyclic form.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a CORRECT explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

18.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Mixture of glycine and glutonic acid can be separated by electro phorons. STATEMENT - 2 :particular pH both exist as oppositely changed ions.
Answer» STATEMENT -1 is TRUE, Statement-2 is True ,Statement -2 is a correct EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

19.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Mixture of glucose and m-dinitrobenzene can be separated by shaking it with water. STATEMENT - 2 : Glucose is soluble in water.
Answer» Statement -1 is TRUE, Statement-2 is True ,Statement -2 is a CORRECT explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

20.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Maltose and glucose can be differentited by Barfoed's test. STATEMENT - 2 : Reducing oliyosecchorides oxidised at a slower rate than monoseccharide by Cu^(2+)in acedic medium.
Answer» Statement -1 is TRUE, Statement-2 is True ,Statement -2 is a CORRECT EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

21.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Maltose and lactose can be differentiated by Fehling test. STATEMENT - 2 : Maltose is reducing but lactose is not.
Answer» Statement -1 is TRUE, Statement-2 is True ,Statement -2 is a CORRECT explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is False. Statement -1 and Satement - 2 both are False. Solution :N//A

Discussion

22.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Ethanol and phenol can be separated by aq. NaHCO_(3). STATEMENT - 2 : Phenol forms soluble sodium salt with aq.NaHCO_(3) whereas ethanol doesnot.
Answer» Statement -1 is True, Statement-2 is True ,Statement -2 is a CORRECT EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is False. Statement -1 and SATEMENT - 2 both are False. Solution :N//A

Discussion

23.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Lassaigne's test is not shown by diazonium compounds. STATEMENT - 2 : Diazonium compounds lose N_(2) on heating before they combine with fused sodium.
Answer» STATEMENT -1 is TRUE, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

24.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Duma's method is more applicable to notrogen containing organic compounds than Kjeldahi's method. STATEMENT - 2 : Kjeldahl's method does not give satisfactory results for compounds in which nitrogen is linked to oxygen.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

25.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Cationnic polymerisation is a better method than anionic polymersation for preparing polyvenylacetate. STATEMENT - 2 : Anion will eliminate acetate group from the monomer.
Answer» Statement -1 is TRUE, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :ANION can't ATTACK on already nucelophilic monomer.

Discussion

26.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : CH_(3)-overset(Ph)overset(\|)C=overset(Ph)overset(\|)C-Phunderset(H_(2)O)overset(O_(3)//Zn)rarrPh-overset(CH_(3))overset(\|)C=O+Ph-underset(O)underset(\|\|)C-Ph STATEMENT - 2 : Products (a) and (b) can distinguishedby Tollen's reagent.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

27.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 :But-1-tne andbut-2-yne can be distinguish by Tollen's reagent. STATEMENT - 2 :Terminal alkyne can react with Tollen's reagent but nthe internal alkyne can not react.
Answer» Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

28.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Blue colour. STATEMENT - 2 : is a secondary alcohol.
Answer» Statement -1 is True, Statement-2 is True ,Statement -2 is a CORRECT EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

29.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Acetaldehyde responds positively with all the tests of carbonyl campound like Tollen's test, Fehling test,2, 4-DNP test, as well as iodoform test. STATEMENT - 2 : All aldehydes respond allthefour tests given in statement - 1.
Answer» Statement -1 is True, Statement-2 is True ,Statement -2 is a correct EXPLANATION for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

30.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : 2,4-dinitrophenol gives NaHCO_(3) test positive. STATEMENT - 2 : Nitrophenols are acidic in water .
Answer» Statement -1 is TRUE, Statement-2 is True ,Statement -2 is a CORRECT explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

31.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : A mixture of o-nitrophenolandp-nitrophenol can be separated by steam distillation. STATEMENT - 2 : o-nitrophenol is steam volatilebut p-nitrophenol is not though bothare water soluble.
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a CORRECT explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 id True , Statement -2 is FALSE. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

32.	Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : A mixture of camphor and benzoic acid cannot be separated by sublimation. STATEMENT - 2 : Camphor on heating sublimes but benzoic acid does not .
Answer» STATEMENT -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1. Statement -1 ID True , Statement -2 is False. Statement -1 is False Statement -2 is True. Solution :N//A

Discussion

33.	Each question has 5 choices (a) ,(b) ,(c ) (d) and (e ) out of which ONLY ONE is correct. (a) Statement -1 is True, Statement -2 is True , Statement -2 is a correct explanation for Statement -1. (b) Statement -1 is True, Statement -2 is True, Statement -2 is NOT a correct explanation for Statement -1. (C ) Statement -1 is True, Statement -2 is False. (d) Statement -1 is False, Statement -2 is True. (e) Statement -1 and Statement -2 both are False. Statement -1: Formation of aromatic diazonium salt take place with all aromatic amine when they reacts with NaNO_(2)//HCl. Statement -2: overset(o+)N=O is electrophile during the formation of Diazonium salt.
Answer» Solution :Statement-1 is not CORRECT because `2^(@)` to `3^(@)` AROMATIC AMINE do not form diazonium salt.

Discussion

34.	Each question has 5 choices (a) ,(b) ,(c ) (d) and (e ) out of which ONLY ONE is correct. (a) Statement -1 is True, Statement -2 is True , Statement -2 is a correct explanation for Statement -1. (b) Statement -1 is True, Statement -2 is True, Statement -2 is NOT a correct explanation for Statement -1. (C ) Statement -1 is True, Statement -2 is False. (d) Statement -1 is False, Statement -2 is True. (e) Statement -1 and Statement -2 both are False. Statement -1: Statement-2: Sn can give maximum of 4 electron during reduction, whereas SnCl_(2) can give only 2.
Answer» ANSWER :B

Discussion

35.	Each question has 5 choices (a) ,(b) ,(c ) (d) and (e ) out of which ONLY ONE is correct. (a) Statement -1 is True, Statement -2 is True , Statement -2 is a correct explanation for Statement -1. (b) Statement -1 is True, Statement -2 is True, Statement -2 is NOT a correct explanation for Statement -1. (C ) Statement -1 is True, Statement -2 is False. (d) Statement -1 is False, Statement -2 is True. (e) Statement -1 and Statement -2 both are False. Statement -1: CH_(3)-underset(O)underset(\|\|)C-ND_(2) on reaction with Br_(2)//KOHgives CH_(3)-NO_(2) as a major product. Statement -2: This is an example of Curtius degradation.
Answer»

Discussion

36.	Each question has 5 choices (a) ,(b) ,(c ) (d) and (e ) out of which ONLY ONE is correct. (a) Statement -1 is True, Statement -2 is True , Statement -2 is a correct explanation for Statement -1. (b) Statement -1 is True, Statement -2 is True, Statement -2 is NOT a correct explanation for Statement -1. (C ) Statement -1 is True, Statement -2 is False. (d) Statement -1 is False, Statement -2 is True. (e) Statement -1 and Statement -2 both are False. Statement -1: Rate of decarboxylation in F-CH_(2)-COOH gt Cl-CH_(2)COOH Statement -2: Electronegativity of F is more than that of Cl.
Answer» SOLUTION :`F-overset(ϴ)CH_(2)` is less stable than `Cl-overset(ϴ)CH_(2)` due to d-orbital RESONANCE.

Discussion

37.	Each question has 5 choices (a) ,(b) ,(c ) (d) and (e ) out of which ONLY ONE is correct. (a) Statement -1 is True, Statement -2 is True , Statement -2 is a correct explanation for Statement -1. (b) Statement -1 is True, Statement -2 is True, Statement -2 is NOT a correct explanation for Statement -1. (C ) Statement -1 is True, Statement -2 is False. (d) Statement -1 is False, Statement -2 is True. (e) Statement -1 and Statement -2 both are False. Statement -1: Effective molecular mass of acetic acid is 120. Statement -2: It forms dimer due to intramolecular H-bonding.
Answer» ANSWER :C

Discussion

38.	Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT-1: For each 10^(@)C rise of temperature the k is nearly double. STATEMENT -2: Energy wise distribution of molecules in a gas sample is an exponential function of temperature so e^(-E_(a)//RT) is doubled.
Answer» If both the STATEMENTS are TRUE and STATEMENT-2 is the correct explanation of STATEMENT-1 If both the statement are TRUE but STATEMENT-2is NOT the correct explanation of STATEMENT-1 If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE Answer :A

Discussion

39.	Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT-1: Nuclide _(13)^(30)Al is less stable than _(20)^(40)Ca. STATEMENT-2: Nuclide having odd number of protons and neutrons are generally unstable.
Answer» If both the statements are TRUE and STATEMENT-2 is the correct EXPLANATION of STATEMENT-1 If both the statement are TRUE but STATEMENT-2is NOT the correct explanation of STATEMENT-1 If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE Answer :B

Discussion

40.	Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENTS-1: Acid catalysed hydrolysis of esters is pseudo first order reaction. STATEMETNT-2:Water is present in excess in given reaction.
Answer» If both the STATEMENTS are TRUE and STATEMENT-2 is the CORRECT explanation of STATEMENT-1 If both the statement are TRUE but STATEMENT-2is NOT the correct explanation of STATEMENT-1 If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE Answer :A

Discussion

41.	each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below :STATEMENT-1: Size of suspension particles are smaller than collidal particles.
Answer» if both the STATEMENT are TRUE and STATEMENT -2 is the CORRECT explanation of STATEMENT - 1 If both the statement are STATEMENT -2IS NOT the correct explanation of STATEMENT -1 If STATEMENT -1 is TRUE and STATEMENT is FALSE If STATEMENT -1 is FALSE and STATEMENT -2 is TRUE Answer :C

Discussion

42.	Each polypeptide in a protein has aminoacids linked with each other in a specific sequence. This sequence of amino acids is said tobe______ structure of proteins.
Answer» primary secondary tertiary quaternary ANSWER :A

Discussion

43.	Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ………….
Answer» Primary structure of PROTEINS SECONDARY structure of proteins TERTIARY structure of proteins QUATERNARY structure of proteins Solution :Primary structure of proteins

Discussion

44.	Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ............
Answer» PRIMARY STRUCTURE of PROTEINS SECONDARY structure of proteins tertiary structure of proteins quaternary structure of proteins. Answer :A

Discussion

45.	Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be... .
Answer» PRIMARY STRUCTURE of PROTEINS SECONDARY structure of proteins tertiary structure of proteins quaternary structure of proteins Answer :A

Discussion

46.	Each of these solutions is added to a mixture of aqueous sodium bromide and chloroform, CHCl_(3). Which one will give a positive test for aqueous bromine when the solutions are vigorously mixed?
Answer» NACL SOLUTION Nal solution `Nal_(3)` solution chlorine WATER Answer :D

Discussion

47.	Each pair forms ideal solution except:
Answer» `C_2H_5Br` and `C_2H_5I` `C_6H_5Cl` and `C_6H_5Br` `C_6H_6` and `C_6H_5CH_3` `C_2H_5I` and `C_2H_5OH` ANSWER :D

Discussion

48.	Each of these compounds [Pt(NH_(3))_(6)]Cl_(4), [Cr(NH_(3))_(6)]CI_(3), CO(NH_(3))_(4)Cl_(3) and K_(2)[PtI_(6)]has been dissolved in water to make its 0,001 M solution, Rank them in order of their increasing conductivity in
Answer» Solution :underset(least conducting)So, `CO(NH_(3))4ltCl_(3)LT K_(2)PtCl_(6) lt [Cr(NH_(3))_(6)]C1_(3) lt underset(most conducting)Pt(NH_(3))_(6)]CI_(4)`

Discussion

49.	Each of these solution is added to a mixture of aqueous solutions of Iodide and chloroform separately. Which will give positive test for Iodine when the solutions are vigorously mixed?
Answer» NACL SOLUTION NaBr solution CHLORINE WATER BROMINE water Solution :Chlorine water, Bromine water

Discussion

50.	Each of these solutionis added to a mixture of aqueoussolutionoof iodide and chloroformtest for iodine whenthe solution are vigeorrously mixed?
Answer» NaCI SOLUTION NaBr solution Chloride water Bromine water Solution :`21^(THETA) + CI_(2) RARR I_(2)` (purple/violet) `+ 2CI^(Theta)` `21^(Theta) + Br_(2) rarr I_(2)` (purple/violet) `+ 2Br^(Theta)`

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

E_(Ag^(+),Ag)^(0) = 0.8 V . Calculate the single electrode potential in 0.01 M Ag^(+)

Eacof nucleophilic substitution among these compounds will be in the order.

Each unit cell of NaCl consists of 4 chloride ions and -

Each unit cell of NaCl consists of 13Cl6(-) ions and

Each unit cell of NaCI consists of 4 chloride ions and:

Each transition series contains:

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Pure and oxidised CHCl_(3) can be differentianted by aq. AgNO_(3) STATEMENT - 2 : Pure CHCl_(3) gives white ppt. with aq.AgNO_(3)but oxidised CHCl_(3) does not.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Solubility of an amino acid is maximu at isoelectric point. STATEMENT - 2 : At isoelectric point amino acods exists as zwitter ion.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Per molecule of glucose consumes two molecules of Ph-NH-NH_(2) during formation of osazone. STATEMENT - 2 : Structure of glucose osazone is :

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Prolin and alanine can be differentiated by ninhydrin test. STATEMENT - 2 : Prolin is a cycliccompound wheweas alanin is open chain

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : p-amino benzoic acid do not exists as zwitter ion. STATEMENT - 2 : Acidic and groups in this compound are too far from each other to react, so they can't form salt.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Oecron an complete hydrolysis produce ethulene glycol and phthalic acid. STATEMENT - 2 : Oecron is a copolymer.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : NH_(2)-NH_(2) gives prussian blue colour during Lassaigne test (element detection test). STATEMENT - 2 : NaCN gives prussian blue colour of Fe_(4)[Fe(CN_(6))]_(3)"with" FeSO_(4),FeCl_(3)

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Number averge and mass average polymeric mass is mearly same in most of natural polymers. STATEMENT - 2 : Number of monomeric units are nearly mass is most of the matural polymers.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Molecular mass of D-glucoseincreses by 210 on treatment with excess acetic anhydride. STATEMENT - 2 : D-glucose principally exists in cyclic form.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Mixture of glycine and glutonic acid can be separated by electro phorons. STATEMENT - 2 :particular pH both exist as oppositely changed ions.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Mixture of glucose and m-dinitrobenzene can be separated by shaking it with water. STATEMENT - 2 : Glucose is soluble in water.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Maltose and glucose can be differentited by Barfoed's test. STATEMENT - 2 : Reducing oliyosecchorides oxidised at a slower rate than monoseccharide by Cu^(2+)in acedic medium.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Maltose and lactose can be differentiated by Fehling test. STATEMENT - 2 : Maltose is reducing but lactose is not.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Ethanol and phenol can be separated by aq. NaHCO_(3). STATEMENT - 2 : Phenol forms soluble sodium salt with aq.NaHCO_(3) whereas ethanol doesnot.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Lassaigne's test is not shown by diazonium compounds. STATEMENT - 2 : Diazonium compounds lose N_(2) on heating before they combine with fused sodium.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Cationnic polymerisation is a better method than anionic polymersation for preparing polyvenylacetate. STATEMENT - 2 : Anion will eliminate acetate group from the monomer.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 :But-1-tne andbut-2-yne can be distinguish by Tollen's reagent. STATEMENT - 2 :Terminal alkyne can react with Tollen's reagent but nthe internal alkyne can not react.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : Blue colour. STATEMENT - 2 : is a secondary alcohol.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : 2,4-dinitrophenol gives NaHCO_(3) test positive. STATEMENT - 2 : Nitrophenols are acidic in water .

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : A mixture of o-nitrophenolandp-nitrophenol can be separated by steam distillation. STATEMENT - 2 : o-nitrophenol is steam volatilebut p-nitrophenol is not though bothare water soluble.

Each question has choices (a), (b), (c ) and(d) out of which ONLY ONR is correct. STATEMENT -1 : A mixture of camphor and benzoic acid cannot be separated by sublimation. STATEMENT - 2 : Camphor on heating sublimes but benzoic acid does not .

each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below :STATEMENT-1: Size of suspension particles are smaller than collidal particles.

Each polypeptide in a protein has aminoacids linked with each other in a specific sequence. This sequence of amino acids is said tobe______ structure of proteins.

Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ………….

Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ............

Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be... .

Each of these solutions is added to a mixture of aqueous sodium bromide and chloroform, CHCl_(3). Which one will give a positive test for aqueous bromine when the solutions are vigorously mixed?

Each pair forms ideal solution except:

Each of these compounds [Pt(NH_(3))_(6)]Cl_(4), [Cr(NH_(3))_(6)]CI_(3), CO(NH_(3))_(4)Cl_(3) and K_(2)[PtI_(6)]has been dissolved in water to make its 0,001 M solution, Rank them in order of their increasing conductivity in

Each of these solution is added to a mixture of aqueous solutions of Iodide and chloroform separately. Which will give positive test for Iodine when the solutions are vigorously mixed?

Each of these solutionis added to a mixture of aqueoussolutionoof iodide and chloroformtest for iodine whenthe solution are vigeorrously mixed?