Amines

Select the reagents that reduce nitriles to primary amines. Choose the correct answer from the options given below.

1. A, B and C only
2. A, D and E only
3. A, C and D only
4. B, D and E only

Identify the reactions which give aniline as the major product. Choose the correct answer from the options given below.

1. C and D only
2. A and B only
3. B and D only
4. A and C only

Predict the major product 'P' in the following sequence of reactions- [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Identify the major product C formed in the following reaction sequence : CH3-CH2-CH2-I NaCN A [Partial hydrolysis]OH- B [Br2]NaOH (major)C

1. propylamine
2. butylamine
3. butanamide
4. -bromobutanoic acid

Which of the following reactions will NOT give primary amine as the product?

1. CH3CN [ (ii) H3O ](i) LiAlH4 Product
2. CH3NC [ (ii) H3O ](i) LiAlH4 Product
3. CH3CONH2 [ (ii) H3O ](i) LiAlH4 Product
4. CH3CONH2 Br2/KOH Product

Which of the following reactions is appropriate for converting acetamide to methanamine?

1. Hoffmann hypobromamide reaction
2. Stephen's reaction
3. Gabriel phthalimide synthesis
4. Carbylamine reaction

Method by which aniline cannot be prepared is

1. degradation of benzamide with bromine in alkaline solution
2. reduction of nitrobenzene with H2/Pd in ethanol
3. potassium salt of phthalimide treated with chlorobenzene followed by hydrolysis with aqueous NaOH solution
4. hydrolysis of phenylisocyanide with acidic solution.

The electrolytic reduction of nitrobenzene in strongly acidic medium produces

1. azobenzene
2. aniline
3. p-aminophenol
4. azoxybenzene.

An organic compound A on treatment with NH3 gives B, which on heating gives C. C when treated with Br2 in the presence of KOH produces ethyl amine. Compound A is

1. CH3COOH
2. CH3CH2CH2COOH
3. [figure]
4. CH3CH2COOH

In a set of reactions m-bromobenzoic acid gave a product D. Identify the product D. [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

What is the product obtained in the following reaction? [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?

1. NaOH/Br2
2. Sodalime
3. Hot conc. H2SO4
4. PCl5

Which one of the following on reduction with lithium aluminium hydride yields a secondary amine?

1. Methyl isocyanide
2. Acetamide
3. Methyl cyanide
4. Nitroethane

In a set of reactions propionic acid yielded a compound D. CH3CH2COOH SOCl2 B NH3 C [Br2]KOH D The structure of D would be

1. CH3CH2NH2
2. CH3CH2CH2NH2
3. CH3CH2CONH2
4. CH3CH2NHCH3

The major organic product formed from the following reaction : [figure] is

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Electrolytic reduction of nitrobenzene in weakly acidic medium gives

1. N-phenylhydroxylamine
2. nitrosobenzene
3. aniline
4. p-hydroxyaniline

Intermediates formed during reaction of [figure] with Br2 and KOH are

1. RCONHBr and RNCO
2. RNHCOBr and RNCO
3. RNH-Br and RCONHBr
4. RCONBr2