Acetamide and ethyl amine can be distinguished by reacting with:            

1. Aq. HCl and heat

2. Aq. NaOH and heat

3. Acidified KMnO₄

4. Bromine water

Predict the product,

1.
2.
3.
4.

1. 

2. 

3. 

4. 

Intermediates formed during the reaction of RCONH₂ with Br₂ and KOH are -                               

1. RCONHBr and RNCO

2. RNHCOBr and RNCO

3. RNHBr and RCONHBr

4. RCONBr₂

Aniline in a set of the following reactions yielded a coloured product Y.                        

$\underset{(273-278<mspace\; width="1em"></mspace>\mathrm{K})}{\overset{{\mathrm{NaNO}}_2/\mathrm{HCl}}{\to }}X\stackrel{\mathrm{N},\mathrm{N}-<mspace\; width="1em"></mspace>\mathrm{dimethylaniline}}{\to }Y$
$$

The structure of Y would be

1.
2.
3.
4.

1.  

2. 
3.   

4.  

Name the end product in the following series of reactions,

CH₃COOH $\stackrel{{\mathrm{NH}}_3}{\to }$A$\stackrel{∆}{\to }$B$\stackrel{{\mathrm{P}}_2{\mathrm{O}}_5}{\to }$C:

1. CH₄ 

2. CH₃OH

3. acetonitrile 

4. ammonium acetate