The reagent among the following that does not reduce an aryl nitro compound to an amine is:

1. H₂(excess) / Pt

2. LiAlH₄ in ether

3. Fe and HCI

4. Sn and HCI

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

1.  Sodium amide, NaNH₂

2.  Sodium azide, NaN₃

3.  Potassium cyanide, KCN

4.  Potassium phthalimide, ${\mathrm{C}}_6{\mathrm{H}}_4(\mathrm{CO}{)}_2{\mathrm{N}}^{-}{\mathrm{K}}^{+}$

The source of nitrogen in Gabriel synthesis of amines is:

1. Sodium amide, NaN₃

2. Sodium azide, NaNO₂

3. Potassium cyanide, KCN

4. Potassium phthalimide ${\mathrm{C}}_6{\mathrm{H}}_4(\mathrm{CO}{)}_2{\mathrm{N}}^{-}{\mathrm{K}}^{+}$

Amongst the given set of reactants, the most appropriate for preparing 2^o amine is: 

The best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is .... ....

1.  Excess H₂ / Pt

2.  NaOH / ${\mathrm{Br}}_2$

3. NaBH₄ / Methanol

4.  LiAlH₄ / Ether

Hofmann bromamide degradation reaction is shown by:

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

(I)	(II)	(III)

 
1. II < III < I

2. III < I < II

3. III < II < I

4. II < I < III

What is the product formed when methylamine reacts with nitrous acid?

The gas evolved when methylamine reacts with nitrous acid is .............

1. NH₃
2. N₂
3. H₂
4. C₂H₆