Alkaline hydrolysis of ${\mathrm{C}}_4{\mathrm{H}}_8{\mathrm{Cl}}_2$ 'A' gives a compound (B) . 'B' on heating with NaOH and ${\mathrm{I}}_2$ produces a yellow precipitate of ${\mathrm{CHI}}_3$.The compound (B) is: 

1.		2.
3.		4.

The most reactive compound towards the nucleophilic addition reaction is:

The final product 'B' in the below-mentioned reaction is:

The Grignard reagent is added to methanal and hydrolyzed to produce:

Which of the following compounds produces a pink colour when combined with Schiff's reagent?

1. CH₃CHO 

2. CH₃CH₂COOH

3. C₃H₅COOH 

4. C₆H₅COC₆H₅

Major product maybe

1.       2.  

3.       4.  

Given the reaction:
 + 

Which of the following statements is correct?

1. (b) has a lesser stability

2. (b) is more volatile than (a)

3. (a) is more volatile than (b)

4. (a) forms higher yields at a lower temperature

1.       2.  

3.       4.