Among the following esters. form a pair of least reactive and most reactive ester towards hydrolysis in that order

      

1.  V. III

2.  VI, II

3.  I, IV

4.  I, V

The product which cannot be formed is:

1.
2.
3.
4.

The product formed in this reaction is

1.          2.  

3.           4.  

Reaction equilibrium will shift towards the right in:

1.		2.
3.		4.

:

1.             

2.  

3.       

4.  

The Wolf Kishner's reduction cannot be applied to:

1.		2.
3.		4.

The correct order of acidity of the following compounds is:

Find the compound responsible for the reddish-brown precipitate formed during Fehling’s test of aldehydes.

The major final product in the following reaction is :

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CN}\underset{\left(2\right){\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\left(1\right){\mathrm{CH}}_3\mathrm{MgBr}}{\to }}$

1.        2.  

3.       4.  

4-Formylbenzoic acid on treatment with one equivalent of hydrazine followed by heating with alcoholic KOH gives, as major product:

1.		2.
3.		4.