The main product X formed in the following reaction is :

        

1.        2.  

3.    4.  

The major product in the following reaction is: 

1.		2.
3.		4.

In the following reactions

1.  

2.  

3.  

4.  

In the given below reaction

x, y, and z are: 

1.  x = Mg; dry ether; y = ${\mathrm{CH}}_3\mathrm{Cl};<mspace\; width="1em"></mspace>\mathrm{z}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}$

2.  x = Mg; dry methanol; $\mathrm{y}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{CO}}_2;<mspace\; width="1em"></mspace>\mathrm{z}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\mathrm{dil}.\mathrm{HCl}<mspace\; width="1em"></mspace>$

3.  x = Mg; dry ether; $\mathrm{y}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{CO}}_2;<mspace\; width="1em"></mspace>\mathrm{z}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\mathrm{dil}.\mathrm{HCl}$

4.  x = Mg; dry methanol; $\mathrm{y}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{CH}}_3\mathrm{Cl};<mspace\; width="1em"></mspace>\mathrm{z}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}$

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

1.		2.
3.		4.

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.  

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

The correct order of acidity of the following compounds is:

The Wolf Kishner's reduction cannot be applied to:

1.		2.
3.		4.

:

1.             

2.  

3.       

4.