Questions

A secondary amine could be prepared readily from the starting material

Options

(a) alkyl isocyanide (b) alkyl cyanide (c) alkanamide (d) phthalimide and alkyl halide

Correct Answer:

alkyl isocyanide

Explanation:

Secondary amines […]

KCN reacts readily to give a cyanide with

Options

(a) ethyl alcohol (b) ethyl bromide (c) bromobenzene (d) chlorobenzene

Correct Answer:

ethyl bromide

Explanation:

No explanation available. Be the first to write the […]

Which is most base

Options

(a) C₆H₅NH₂ (b) (C₆H₅)₂NH (c) CH₃NH₂ (d) (CH₃)₂NH

Correct Answer:

(CH₃)₂NH

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting […]

Aniline is treated with a mixture of sodium nitrite and hypophosphorus acid, the product formed is

Options

(a) aniline diazonium hypophosphate (b) benzene (c) anilinium hypophosphite (d) aniline diazonium hypophosphite

Correct Answer:

benzene

[…]

Butanenitrile is prepared by heating

Options

(a) propyl alcohol with KCN (b) butyl alcohol with KCN (c) butyl chloride with KCN (d) propyl chloride with KCN

Correct Answer:

propyl chloride with KCN

Explanation: […]

Which reagent can be used for the alkylation of aromatic nitro compounds

Options

(a) Methyl-sulfinyl carbanion (b) Methyl-iodide (c) Dimethyl-sulphate (d) Methyl-lithium

Correct Answer:

Methyl-sulfinyl carbanion

Explanation:

Ar – NO₂ group is ring […]

The diazotization of two feebly basic aromatic amines is achieved by using

Options

(a) nitrous acid (b) nitrosyl-hydrochloric acid (c) sulphuric acid (d) nitrosoyl-sulphuric acid

Correct Answer:

nitrous acid

Explanation:

Diazotisation reaction of aromatic […]

Nitromethane reacts with chlorine in the presence of a base to give

Options

(a) chloroform (b) chloropicrin (c) nitrosyl chloride (d) chloromethane

Correct Answer:

chloropicrin

Explanation:

Primary and secondary nitroalkanes on treatment with […]

Which one of the following is an appropriate method of separating benzene and aniline from their mixture

Options

(a) Decantation (b) Filtration (c) Distillation (d) Sublimation

Correct Answer:

Distillation

Explanation:

No explanation available. […]

Allyl isocyanide has

Options

(a) 9 sigma bonds and 4π bonds (b) 9 sigma bonds, 3π bonds and 2 non-bonding electrons (c) 8 sigma bonds and 5π bonds (d) 8 sigma bonds, 3π […]