Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.	Draw structure S_(3)O_(9)
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2.	During decomposition of an activated complex :
Answer» energy is ALWAYS RELEASED energy is always absorbed energy does not change REACTANT may be FORMED ANSWER :A::D

3.	Draw structure sodium dihydrogen phosphate
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4.	During decomposition of an activated comples. (i).energy is always releasing (ii).energy is always absorbed (iii).energy does not change (iv).reactants may be formed
Answer» (i), (II) and (ii) (i) and (IV) (ii) and (III) (ii), (iii) and (iv) ANSWER :B

5.	Draw structure RbIO_(2)
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6.	During decomposition of an activated complex
Answer» ENERGY is always RELEASED energy is always absorbed energy does not CHANGE products MAY be formed Answer :A

7.	Draw structure S_(2)O_(7)^(2-)
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8.	During decomposition of an activate complex…….
Answer» ENERGY Is ALWAYS released energy is always absorbed energy does not change reactants may be formed Solution :The energy of activated complex is maximum and is more then reactant and product. So activated complex decompose and convert into product with low energy,product and reactant also form ,so (D) is correct. Activated complex with HIGH energy is there which decompose and form product and always energy releases.Statement (A) is correct.

9.	Draw structure potassium bicarbonate (KHCO_(3))
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10.	During debromination of meso-dibromobutane, the major compound formed is
Answer» N -butane 1 - butane cis - 2- BUTENE trans - 2 - butene Solution :It gives trans - 2 - butene.

11.	Draw structure Pyrophosphoric acid (H_(4)P_(2)O_(7))
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12.	During debromination of meso dibromobutane, the major compound formed as:
Answer» n-butane 1-butene trans-2-butene cis-2-butene Answer :C

13.	Draw structure peroxy phosphoric acid (H_(3)PO_(5))
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14.	During debromination of meso-dibromo-butane, the major compound formed is:
Answer» n-butane 1-butene Cis-2-butene Trans-2-butene Answer :D

15.	Draw structure Peroxy diphosphoric acid (H_(4)P_(2)O_(8))
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16.	During day time plants absorb:
Answer» CARBON dioxide Carbon monoxide Nitrogen Oxygen Answer :A

17.	Draw structure P_(4)S_(10)
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18.	During curdling of milk, what happens to the sugar present in it?
Answer» SOLUTION :LACTIC ACID is FORMED.

19.	Draw structure P_(4)O_(10)
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20.	During curdling of milk , what happens to sugar presnet in it ?
Answer» Solution :During curdling of MILK , the milk SUGAR LACTOSE is converted into lactic acid.

21.	Draw structure P_(4)O_(6)
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22.	During curdling of milk, what happens to sugar present in it ?
Answer» SOLUTION :LACTOSE CHANGES to LACTIC ACID.

23.	Draw structure P_(4)
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24.	Draw structure Oleum (H_(2)S_(2)O_(7))
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25.	During coupling reaction of benzene diazonium chloride and aniline the pH of the reaction medium should be
Answer» `1 - 2` `9 - 10` `4 - 5` `7 - 8` Solution :During COUPLING of BENZENE diazonium CHLORIDE ad aniline, the `pH` of the reaction MEDIUM should be 7 to 8.

26.	Draw structure of TNT, an explosive.
Answer» SOLUTION :

27.	During coupling reaction of benzene diazonium chloride and aniline, the pH of reaction medium should be approximately
Answer» `1-2` `9-10` `4-5` `7-8` ANSWER :3

28.	Draw structure of lactose .
Answer» SOLUTION :

29.	During conversion of oxime to nitroparaffins, which reaction is involved?
Answer» REDUCTION oxidation ACID HYDROLYSIS alkaline hydrolysis Answer :B

30.	Draw structure of sucrose .
Answer» SOLUTION :

31.	Draw structure of cyclopropanone oxime.
Answer» SOLUTION :

32.	During conversion of nitroalkane to N-alkyl hydroxyl amine, which of the following reducing agent is used?
Answer» `Sn+ cone. HCl` `H_(2)//NI` ` Zn+ NH_(4)Cl` `SnCl_(2) + HCl ` ANSWER :C

33.	Draw structure NH_(4)OCN
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34.	During conversion ofisopropyl alcohol to isopropyl iodid which of the following is not used
Answer» `NaI//H_(3)PO_(4)` `KI// H_(3)PO_(4)` `MaI+H_(2)SO_(4)` HI Answer :C

35.	Draw structure O_(2)F_(2)(dimer form of OF)
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36.	During conversion of alcohol to monoiodo alkane which of the following is used
Answer» ALC. NAL `NaI//H_(3)PO_(4)` NaI inether `NaI "in" H_(2)O` Answer :B

37.	Draw structure NaIO_(3)
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38.	During conversion of glucose into glucose cyanohydrin, what functional group/atom of glucose is replaced?
Answer» Hydrogen Aldehydic group Primary ALCOHOLIC group SECONDARY alcoholic group Solution : Hence , during this CONVERSION , aldehydic group is REPLACED

39.	Draw structure NaHSO_(3)
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40.	During conductometric titration of 0. 1 MHCl with 1.0 M KOH, which is the correct observation ?
Answer» Resistance of the SOLUTION decreases upto equivalence point and them INCREASES Resistance increases upto equivalence point and then decreases. Conductance increases upto equivalence point and then decreases. Conductance decreases upto equivalence point and then BECOMES almost constant. Solution :Upto equivalence point highly mobile `H^(+)` GET replaced by much less mobile `K^(+)` ions . Hence resistance of solution of increases . After equivalence point resistance decreases due to unreacted `K^(+)` and highly mobile `OH^(-)` ions

41.	Draw structure Na_(2)S_(4)O_(6)
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42.	During coagulation of egg which change occurs 1) breaking of peptide bond 2) breaking of hydrogen bond 3) breaking of ionic bond 4) breaking of sulphide bond
Answer» only 1 1,2,4 2,3,4 1,2,3,4 Answer :C

43.	Draw structure N_(2)O_(5)
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44.	During chlorination of methane to methyl chloride, the propagation step is represented by
Answer» `CL - Cl overset(HV) (to) overset()(C)L + overset()(C)l` `overset()(C) H_(3) + overset()(C) l to CH_(3) Cl` `CH_(4) + overset()(C)l to overset()(C)H_(3) + HCl` `overset()(C)l + overset()(C)l to Cl - Cl` Solution :`CH_(4) + overset()(C)l to overset()(C)H_3 + HCl`is the CHAIN propagating step.

45.	During charging of lead storage bttery, the reaction occurring at the cathode is:-
Answer» `Pb^(2+)+2etoPb` `PbtoPb^(2+)+2e` `PbSO_(4)+2H_(2)OtoPbO_(2)+4H^(+)+SO_(4)^(2-)+2e^(-)` `Pb^(2+)+SO_(4)^(2-)toPbSO_(4)` Solution :In an UNCHARGED condition, in LEAD storage BATTERY, the reaction occurring at the cathode is, `PbO_(2)+4H^(+)+SO_(4)^(2-)+2e^(-)toPbSO_(4)+2H_(2)O` During charging of lead storage battery, the reaction is REVERSED at both anode and cathode. The reaction occurring at the cathode is, `PbSO_(4)+2H_(2)OtoPbO_(2)+4H^(+)+SO_(4)^(2-)+2e^(-)`

46.	Draw structure N_(2)O_(3)
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47.	Draw structure N_(2)F_(4)
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48.	During charging of lead storage cell
Answer» external emf is greater than the emf of cell external emf is EQUAL to the emf of cell external emf is less than emf of the cell none of these Solution :During CHARGING of lead accumulator , ELECTRICAL energy is supplied to it from external field , i.e, it ACTS as an electrical cell .

49.	During charging of lead accumulator
Answer» electrolysis of `PbSO_(4)` takes place and PB and `PbO_(2)` are deposited Pb and `PbO_(2)` are deposited specific gravity of `H_(2)SO_(4)` remains same specific gravity of `H_(2)SO_(4)` decreases Solution :During charging of LEAD accumulator , REVERSE REACTION takes place . `THEREFORE` Pb plates become cathode.

50.	Draw structure Meta phosphoric acid (HPO_(3))
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