InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
On heating an aliphatic primary amine with chloroform and enthanolic potassium hydrozide, the organic compound formed isA. an alkanolB. an alkanediolC. an alkyl cyanideD. an alkyl isocyanide |
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Answer» Correct Answer - (d) |
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| 2. |
Acetamide is treated separately with the following reagents. Which one of these would give methyl amine ?A. `PCl_(5)`B. SodalimeC. `NaOH+Br_(2)`D. Hot,cone `H_(2)SO_(4)` |
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Answer» Correct Answer - (c ) |
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| 3. |
A positive carbylmine test is given byA. N,N-dimethy l anilineB. 2,4- dimethyl anilineC. N-methyl-0- methyl anilineD. p-methyl benzy amine |
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Answer» Correct Answer - (b,d) |
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| 4. |
Ethyl methylamine cannot be resolved under normal conditions because.A. The favoured configurtion is not chiralB. it isomerizes rapidly with the achiral iosmer timethylamineC. The nitrogen atom rapidly inverts Its configurtion leading to a racemic mixureD. The c-n bond is not stable under conditions used for resolution |
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Answer» Correct Answer - (c ) |
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| 5. |
A positive carbylmine test is given byA. N,N- dimethylanilineB. 2,4-dimethy lanilineC. N-methy1-o-methylanilineD. p-methylbenzylamine |
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Answer» Correct Answer - (d) |
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| 6. |
Dibutylamine , `(C_(4)H_(9))_(2)NH,`and anisole`C_(5)H_(5)OCH_(3),` have similar boiling points , and are relatively insoluble in water . How might a mixture of these compounds be separated into the pure components?A. (i) Dissolve mixure in ether, (ii) Extract the anisole into 10% aqueous NaOHB. (i) Dissolve mixure in ether, (ii) Exract the amine into 10% aqueous HClC. (i) Dissole mixure in ether , (ii) Exract the amine into 10% aqueous NaOHD. (i) Dissolve mixture in ether , (ii) Extract the anisole into 10% aqueousHcl |
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Answer» Correct Answer - (b) |
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| 7. |
Which of the following procedures would be best for prparing dimrthycyclohexylamine ,`C_(6)H_(11)N(CH_(3))_(2)`?A. (i) Dimrthylamine +cyclohexylbromide in ether (ii) `NaBH_(3)` cnN in methyanolB. Dimrthylamine +cyclohexyilbromide in etherC. Cyclohexylbromide+`2CH_(3)l`in etherD. (i) Cyclohexylbromide+NaCN in methanol (ii) `2CH_(3)Li in THF` |
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Answer» Correct Answer - (a) |
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| 8. |
Assertion `CH_(3)CH_(3)(CH_(3)) NCH_(2)CH_(2)CH_(3)`on treatment with aqueous Hcl produces two stereo isomeric quaternary ammonium salts. Reason salts will have a chiral centre.A. Both assertion and reason are correct and reason is the correct explanation of the assertion.B. Both assertion and reason are correct and reason is the correct explanation of the assertion.C. Assertion is correct but reason is incorrect.D. Assertion is incorrect but reson is correct. |
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Answer» Correct Answer - (a) |
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| 9. |
A tertiary amine can be separated from a mixure of primary and tertiary amine usingA. `NaNO_(2)//HCl`B. `C_(6)H_(5)SO_(2)Cl`C. `H_(2)SO_(4)`D. KOH |
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Answer» Correct Answer - (a,b) |
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| 10. |
In order to prepare a `1^(@)`- amine incorporating an additional `CH_(2)` group from an alkyl halide, What reagent is often used as the nitrogen soure?A. Sodium amide `NaNH_(2)`B. Sodium azide ,`NaN_(3)`C. potassium cyanide,KCND. Potassium phthalimide,`C_(6)H_(4)(CO)_(2)NK` |
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Answer» Correct Answer - (c ) |
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| 11. |
The correct order of basicities of the following compounds is , `" "underset((2))(CH_(3)CH_(2)NH_(2))` `underset((3))((CH_(3))_(2)NH)" "underset((4))(CH_(3)CONH_(2))`A. `2gt1gt3gt4`B. `1gt3gt2gt4`C. `3gt1gt2gt4`D. `1gt2gt3gt4` |
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Answer» Correct Answer - (b) |
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| 12. |
In the following reaction, `CH_3NH_2+CHCl_3+KOHrarr` Nitrogen containing compound `+KCl+H_2O`. The nitrogen containing compound isA. `CH_(3)CN`B. `CH_(3)"NNCH"_(3)`C. `CH_(3)-barN-=bar(C)`D. `CH_(3)-overset(+)(N)-=bar(C)` |
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Answer» Correct Answer - (d) |
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| 13. |
Benzamide on reaction with `POCl_3` givesA. anilineB. benzonitrileC. chorobenzeneD. benzyl amine |
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Answer» Correct Answer - (b) |
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| 14. |
In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of amine produced areA. four moles of NaOH and two moles of `br_(2)`B. two moles of NaOH and two moles of `br_(2)`C. four moles of NaOH and one moles of `br_(2)`D. one moles of NaOH and one moles of `br_(2)` |
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Answer» Correct Answer - (c ) |
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