94420 + Interview Questions in Chemistry in Class 12

1.	The catalyst used in the manufacture of H_2 by Bosche's process is
Answer» `Cr_2O_3` `Fe_2O_3 + Cr_2O_3` `Fe_2O_3` `CU` SOLUTION :`Fe_2O_3 + Cr_2O_3`

Discussion

2.	The catalyst used in the manufacture of Buna-s is
Answer» PT NI COKE Na Answer :D

Discussion

3.	The catalyst used in the manufacture of ammonia by Haber's process is
Answer» `V_(2)O_(5)` Fe NI Co ANSWER :2

Discussion

4.	The catalyst used in the industrial production of methanol is
Answer» `ZnO- Cr_(2)O_(3)` `PT- RH` `Fe+Mo` `MnO_(2)` Solution :`ZnO- Cr_(2)O_(3)`

Discussion

5.	The catalyst used in the manufacture of acetic acid from acetaldehyde by the atmosphere oxygen is
Answer» `(CH_(3) COO)_(2) MN` `(CH_(3) COO)_(2) Zn` `CH_(3) COOK` `CH_(3) COONA` ANSWER :A

Discussion

6.	The catalyst used in the hydrogenation of oils to obtain vanaspathi is .........
Answer» Iron Molybdenum NICKEL Copper Solution : Nickel

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7.	The catalyst used in the hydrogenation of oils into fats is:
Answer» `V_2O_5` Fe Ni Pt Answer :C

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8.	The catalyst used in the hydrogenation of oils
Answer» `V_(2) O _(5)` FE Ni Pt Answer :C

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9.	The catalyst used in the dehydration of ethylalcohol to ethene is
Answer» `Al_(2)O_(3)` `Sb_(2)O_(3)` `As_(2)_O_(3)` Cu Answer :A

Discussion

10.	The catalyst used in the hydroformylation of olefins is …..
Answer» SOLUTION :`Co_(2)(CO)_(8)`

Discussion

11.	in the alpha - halogenation of aliphatic acids the catalyst used is :
Answer» `Pd+BaSO_(4)` `AlCl_(3)`(ANHYD) P Raney Ni. Answer :C

Discussion

12.	The catalyst used in getting aniline from chlorobenzene is
Answer» `PT` `NI` `Cu_(2)O` `PD` Solution :`Cu_(2)O` (Dow's process).

Discussion

13.	The catalyst used in Kjeldahl's method for the estimation of nitrogen is:
Answer» COPPER Magnesium Mercury Sodium Solution :Copper SULPHATE (or) HG USED as CATALYST

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14.	The catalyst used in Haber's process of NH_3 is:
Answer» `PT` `V_2O_5` `FE` `MO` ANSWER :C

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15.	The catalyst used in Haber's process is
Answer» FE `Al_(2)O_(3)` `CaCl_(2)` `NH_(3)` Answer :1

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16.	The catalyst used in Deacon's process is:
Answer» `Al_2O_3` `CuCl_2` `AlCl_3` `MnO_2` ANSWER :B

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17.	Thecatalystused inGattermannreactionis
Answer» `CUCI` `CU`powder `HBF_(4)` `NaNO_(2)` SOLUTION :DEFINITION

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18.	The catalyst used in Decons process is :
Answer» `CuCl_2` `CU` `CuSO_4` `CUS` ANSWER :A

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19.	The catalyst used in Bosch process for manufacture of H_(2) O is :
Answer» FINELY divided Ni `V_(2)O_(5)` PB `Fe_(2)O_(3)Cr_(2)O_(3)` Answer :D

Discussion

20.	The catalyst used in cyanamide process is
Answer» FE `K_(2)O+Al_(2)O_3` `CaCl_2` `NH_3` ANSWER :C

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21.	The catalyst used in Bosch process of manufacture of H_2 is:
Answer» FINELY DIVIDED NI `V_2O_3` PD `Fe_2O_3 + Cr_2O_3` ANSWER :D

Discussion

22.	The catalyst used in a reaction can change
Answer» ACTIVATION ENERGY of a reactio Threshold energy of a reaction Enthalpy of a reaction Mechanismof a reaction Solution :A CATALYST DECREASES Activation energy (or) thershold ENEGY

Discussion

23.	The catalyst used for the manufacture of H_2SO_4, in contact process for the oxidation of SO_2" to "SO_3 is
Answer» FINELY DIVIDED iron molybdenum nitric oxide vanadium pentaoxide Answer :D

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24.	The catalyst used for the polymerisation of olefins is
Answer» ZIEGLER NATTA CATALYST WILKINSON's catalyst pd-catalyst Zeise's SALT catalyst Answer :A

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25.	The catalyst used for the oxidation of HCl by air is .........
Answer» SOLUTION :`CuCl_2`

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26.	which catalyst used for the hydrogenation of vegetable oils for making margarine?
Answer» ANSWER :C

Discussion

27.	The catalyst used for olefin polymerization is
Answer» Ziegler-Natta catalyst Wilkinson catalyst Raney NICKEL catalyst Merrifield RESIN. Solution :Ziegler-Natta catalyst `[(C_2H_5)_3Al + TiC1_4]` is USED in linear polymerisation to prepare high density polyethylene (HDPE).

Discussion

28.	The catalyst used for olefin polymerization is.
Answer» Ziegler- NATTA CATALYST WILKINSON catalyst RANEY NICKEL catalyst Merrified resin Answer :A

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29.	The catalyst used for preparingtoluene with a mixture of C_(6)H_(6) and CH_(3)Cl is
Answer» ANHYDROUS `AlCl_(3)` Pd Pt Ni Answer :A

Discussion

30.	The catalyst used for converting methane tomethanol in presence of air at 100 atm and 523 K is
Answer» `Mo_2O_3` Ni Cu Zn Answer :C

Discussion

31.	The catalyst uned in the manufacture of H_(2)SO_(4) by contact process is
Answer» `Al_(2) O_(3)` `Cr_(2) O_(3)` `V_(2) O_(5)` `MnO_(2)` Answer :C

Discussion

32.	The catalyst used in the contact process of sulphuric acid is :
Answer» COPPER Iron Vanadium PENTOXIDE or PT (ASBESTOS) Ni Answer :C

Discussion

33.	The catalyst TiCl_(4)+R_(3)Al used in the polymerisation of ethylene is known as ……….catalyst.
Answer» SOLUTION :Zeigler-Natta

Discussion

34.	The catalyst poison in contact process of manufacture of SO_(2)is .......
Answer» `As_2O_3` `H_2S` `CO` `As_2S_3` SOLUTION :`As_2O_3`

Discussion

35.	The catalyst and promoter used in Haber's process are respectively .............
Answer» MO, FE Fe, Mo `PT,H_2S` `Pt, V_2O_5` SOLUTION : Fe, Mo

Discussion

36.	The catalyst iron, employed in the Haber's process, contains molybdenum, the function of which is:
Answer» To increases the rate of combination of gases To counterbalance for the PRESENCE of IMPURITIES in the gases To act as a catalyst promoter and increase ACTIVITY of catalyst To make up for the adverse TEMPERATURE and pressure conditions Answer :C

Discussion

37.	The catalyst in Wacker's process is
Answer» `CuCl_2` `PdCl_2` `Cu_2Cl_2` Pd Answer :A

Discussion

38.	The catalyst in Deacon 's process is
Answer» `Cu_(2)Cl_(2)` PT `AlCl_(3)` `CuCl_(2)` ANSWER :D

Discussion

39.	The catalysed decomposition of H_(2)O_(2) in aqueous solution is followed by removing equal volume samples at various time intervals and titrating them with "KMnO"_(4) to determine the undecomposed H_(2)O_(2). The results thus obtained are : {:("Time (seconds)",,,:,,,0,,,600,,,1200),("cm"^(2)" of KMnO",,,:,,,22.8,,,13.8,,,8.2):} Show that the reaction is mono-molecular. What is the value of the specific reaction rate ?
Answer» ANSWER :`8.45xx10^(-4)s^(-1)`

Discussion

40.	The catalyst
Answer» INCREASE the ACTIVATION energy Helps in FORMING more products Bring about equilibrium None of these Answer :D

Discussion

41.	The ease of hydrolysis of trichlorides of group - 15 elements decrease in the order
Answer» `NCl_(3) GT PCl_(3) gt AsCl_(3) gt SbCl_(3) gt BiCl_(3)` `PCl_(3) gt NCl_(3) gt AsCl_(3) gt SbCl_(3) gt BiCl_(3)` `AsCl_(3) gt NCl_(3) gt PCl_(3) gt SbCl_(3) gt BiCl_(3)` `SbCl_(3) gt BiCl_(3) gt PCl_(3) gt NCl_(3) gt AsCl_(3)` ANSWER :1

Discussion

42.	The carboxylic acid which reduces Tollen's reagent is
Answer» HCOOH `CH_(3)COOH` `CH_(3)CH_(2)COOH` `CH_(3)CH_(2)CH_(2)COOH` Solution :Formic acid reduces Tollen's reagent `UNDERSET("Tollen's reagent")(2AG(NH_(3))_(2)^(+))+underset("formic acid")(HCOOH)to underset("Silver")(2Ag)+CO_(2)+2NH_(4)^(+)+2NH_(3)` Because it behave both as an acid and as an aldehyde.

Discussion

43.	The case of dehydrohalogenation of alkyl halides with alcoholic KOH is
Answer» `3^(@) LT 2^(@) lt 1^(@)` `3^(@) GT 2^(@) gt 1^(@)` `3^(@) gt 2^(@) gt 1^(@)` `3^(@) gt 2^(@) lt 1^(@)` SOLUTION :Ease of dehydrohalogenation decreases in the order: `3^(@) gt 2^(@) gt 1^(@)`

Discussion

44.	The carboxylic acid which does not undergo Hell Volhard Zelinsky reaction is :
Answer» `CH_(3)COOH` `(CH_(3))_(2)CHCOOH` `CH_(3)CH_(2)CH_(2)COOH` `(CH_(3))_(3)C COOH`. SOLUTION :Theacid which does not contain `alpha` hydrogen ATOM.

Discussion

45.	The carboxylic acid of least acidic strength among the following is:-
Answer» p-nitrobenzoic acid p-methylbenzoic acid p-chlorobenzoic acid p-methoxybenzoic acid Solution :Electron donating groups decrease acid strength of benzoic acid and electron WITHDRAWING groups increase acidic STRENTH. Order of +I effect is `-OM E gt -Me,` so, p-methoxy benzoic acid is weaker acid than p-methylbenzoic acid.

Discussion

46.	The carboxylic acid that reduces Tollen's reagent is
Answer» ACETIC ACID BENZOIC acid formic acid Malic acid Answer :C

Discussion

47.	The carboxylic acid group attached to porphyrin of heme in blood is
Answer» `HCOO^(-)` `-CH_(2)-COO^(-)` `-C_(2)H_(4)-COO^(-)` `-C_(3)H_(6)-COO^(-)` ANSWER :C

Discussion

48.	The carbonyl compound producing an optically active product by reaction with LiAlH_(4) is
Answer» PROPANONE BUTANONE 3-pentanone BENZOPHENONE. ANSWER :B

Discussion

49.	The carbonate which does not leave a residue on heating is
Answer» `Na_(2)CO_(3)` `Ag_(2)CO_(3)` `CuCO_(3)` `(NH_(4))_(2)CO_(3)` ANSWER :D

Discussion

50.	The carbonyl carbon is ________ hybridised.
Answer» SP `sp^(2)` `sp^(3)` `dsp^(2)` ANSWER :B

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The catalyst used in the manufacture of H_2 by Bosche's process is

The catalyst used in the manufacture of Buna-s is

The catalyst used in the manufacture of ammonia by Haber's process is

The catalyst used in the industrial production of methanol is

The catalyst used in the manufacture of acetic acid from acetaldehyde by the atmosphere oxygen is

The catalyst used in the hydrogenation of oils to obtain vanaspathi is .........

The catalyst used in the hydrogenation of oils into fats is:

The catalyst used in the hydrogenation of oils

The catalyst used in the dehydration of ethylalcohol to ethene is

The catalyst used in the hydroformylation of olefins is …..

in the alpha - halogenation of aliphatic acids the catalyst used is :

The catalyst used in getting aniline from chlorobenzene is

The catalyst used in Kjeldahl's method for the estimation of nitrogen is:

The catalyst used in Haber's process of NH_3 is:

The catalyst used in Haber's process is

The catalyst used in Deacon's process is:

Thecatalystused inGattermannreactionis

The catalyst used in Decons process is :

The catalyst used in Bosch process for manufacture of H_(2) O is :

The catalyst used in cyanamide process is

The catalyst used in Bosch process of manufacture of H_2 is:

The catalyst used in a reaction can change

The catalyst used for the manufacture of H_2SO_4, in contact process for the oxidation of SO_2" to "SO_3 is

The catalyst used for the polymerisation of olefins is

The catalyst used for the oxidation of HCl by air is .........

which catalyst used for the hydrogenation of vegetable oils for making margarine?

The catalyst used for olefin polymerization is

The catalyst used for olefin polymerization is.

The catalyst used for preparingtoluene with a mixture of C_(6)H_(6) and CH_(3)Cl is

The catalyst used for converting methane tomethanol in presence of air at 100 atm and 523 K is

The catalyst uned in the manufacture of H_(2)SO_(4) by contact process is

The catalyst used in the contact process of sulphuric acid is :

The catalyst TiCl_(4)+R_(3)Al used in the polymerisation of ethylene is known as ……….catalyst.

The catalyst poison in contact process of manufacture of SO_(2)is .......

The catalyst and promoter used in Haber's process are respectively .............

The catalyst iron, employed in the Haber's process, contains molybdenum, the function of which is:

The catalyst in Wacker's process is

The catalyst in Deacon 's process is

The catalyst

The ease of hydrolysis of trichlorides of group - 15 elements decrease in the order

The carboxylic acid which reduces Tollen's reagent is

The case of dehydrohalogenation of alkyl halides with alcoholic KOH is

The carboxylic acid which does not undergo Hell Volhard Zelinsky reaction is :

The carboxylic acid of least acidic strength among the following is:-

The carboxylic acid that reduces Tollen's reagent is

The carboxylic acid group attached to porphyrin of heme in blood is

The carbonyl compound producing an optically active product by reaction with LiAlH_(4) is

The carbonate which does not leave a residue on heating is

The carbonyl carbon is ________ hybridised.