Ethyl benzoate can be prepared from benzoic acid by using:

1. Propyl alcohol

2. Ethyl alcohol and dry HCl

3. Ethyl chloride

4. Sodium ethoxide

Product 'P' in the above reaction is: 

1.		2.
3.		4.

\(CH_3CHO+HCN\rightarrow CH_3CH(OH)CN\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\downarrow{\bf{H.OH}}\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~CH_3CH(OH)COOH~\)

1. 100 % R-isomer

2. 100% S-isomer

3. 50% R + 50% S-isomer

4. 20% R + 80% S-isomer

In a set of reactions acetic acid yielded a product D
\(\begin{aligned} &CH_3COOH \xrightarrow{SOCl_2} A \xrightarrow[\text{Anhy.}\ AlCl_3]{\text{Benzene}} B\\& B \xrightarrow{HCN}C\xrightarrow{H_2O}D \end{aligned}\)

The structure of D would be:

1.		2.
3.		4.