STANDARD Chemistry Amines Class 12 Questions

Which one of the following reducing agents is likely to be most effective in bringing about the following change? R−C−NH₂

What is the end product in the following sequence of reactions? COOH → PCl₅ → 2NH₃ → Br₂/KOH

Amine that cannot be prepared by Gabriel phthalimide synthesis is

Tertiary amines have lowest boiling points amongst isomeric amines because

The correct order of increasing basic nature of the following bases is

When p-toluidine reacts with chloroform and alcoholic KOH, then the product is

Primary amines on reaction with nitrous acid form _______. For the test of primary amines _______ reaction is used. Primary amines are _______ basic than ammonia.

Find the product of the given reaction: C₆H₅COCH₃ + CH₃CH₂NH₂, H⁺ →

What happens when Aniline is treated NaNO₂ and dil. HCl at 273-278 K.

Which of the following reactions is not correctly matched?

Secondary amines could be prepared by

Which of the following orders is true regarding the basic nature of NH₂ group?

Hydrolysis of which compound will give carbolic acid?

Chloromethane on treatment with excess of ammonia yields mainly

Aniline when diazotised in cold and then treated with N, N-dimethylaniline gives a coloured product. The structure of this product is

Which of the following is a 3° amine?

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

In order to prepare a 1° amine from an alkyl halide with simultaneous addition of one CH₂ group in the carbon chain, the reagent used as source of nitrogen is __________.

The source of nitrogen in Gabriel synthesis of amines is

Amongst the given set of reactants, the most appropriate for preparing 2° amine is _________.

The best reagent for converting 2-phenylpro-panamid into 2-phenylpropanamine is

The best reagent for converting, 2-phenylpro panamide into 1-phenylethanamine is__________.

Hoffmann bromamide degradation reaction is shown by

The correct increasing order of basic strength for the following compounds is _______.

Methylamine reacts with HNO₂ to form

The gas evolved when methylamine reacts with nitrous acid is

Reduction of aromatic nitro compounds using Fe and HCl gives

The most reactive amine towards dilute hydrochloric acid is _____.

Acid anhydrides on reaction with primary amine give

Among the following amines, the strongest Bronsted base is __________.

Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is

Which of the following methods of preparation of amines will not give same number of carbon atoms in the chain of amines as in the reactant?

Assertion: Aniline does not undergo Friedel-Crafts reaction. Reason: Friedel-Crafts reaction is an electrophilic substitution reaction.

Given below are two statements: Statement-I : Primary aliphatic amines react with HNO₂ to give unstable diazonium salts. Statement-II : Primary aromatic amines react with HNO₂ to form diazonium salts which are stable even above 300 K. In the light of the above statements, choose the most appropriate answer from the options given below: