Related InterviewSolutions

• 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
• 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)`
• 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
• 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
• A positive carbylmine test is given byA. N,N- dimethylanilineB. 2,4-dimethy lanilineC. N-methy1-o-methylanilineD. p-methylbenzylamine
• 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
• 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`
• 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.
• 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
• 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`