NEET

The number of primary amines of formula C₄H₁₁N is :

Solution

Ethylamine can be prepared by the action of bromine, caustic potash and :

acetamide
propionamide
formamide
methyl cyanide

Solution

When phenol and benzene diazonium chloride are coupled,the main product is :

aniline
p-hydroxyazobenzene
azobenzene
chlorobenzene

Solution

The reason for the lesser basicity of aniline as compared to that of cyclohexylamine is +R effect of –NH₂ group(i.e., electron releasing resonance effect of – NH₂ group).

The basicity of aniline is less than that of cyclohexylamine.This is due to

+ R effect of —NH₂ group
– I effect of —NH₂ group
– R effect of —NH₂ group
hyperconjugation effect

Solution

Propionamide on Hofmann degradation gives –

methyl amine
ethyl amine
propylamine
ethyl cyanide

Solution

Among the following which one does not act as an intermediate in Hofmann rearrangement ?

RNCO
\(RCO\ddot{N}\)
\(RCO\ddot{N}HBr\)
RNC

Solution

Identify Z in the following sequence of reactions –
\(CH_{3} – COONH_{4} \overset{\Delta }{\rightarrow} X \overset{P_{2}O_{5}}{\rightarrow} Y \overset{H_{2}O / H^{\oplus }}{\rightarrow} Z\)