$CH_3CH(I)_2$ $\xrightarrow{KCN}$ $\xrightarrow[\Delta]{H_3O^{+}} ?$ Here the end product would be

All of the following compounds react with ethylmagnesium bromide $(CH_3CH_2MgBr)$. Alcohols are formed from three of the compounds. Which one does not give an alcohol?

Lower members of aliphatic carboxylic acids are soluble in water. This is due to

Which of the following is most reactive towards nucleophilic attack at the carbonyl group?

Which of the following esters,after reduction with $LiAlH_4$ followed by aqueous workup,will yield two molecules of only a single alcohol?

When carboxylic acid reacts with organolithium reagents to give ketones,side reactions sometimes occur. For example,
$HOCH_2CH_2CH(CH_3)CH_2CH_2COOH$ $\xrightarrow[(x) \, CH_3Li]{tetrahydro\,furan}$ $\xrightarrow[NH_4Cl]{H_2O}$ $\underset{63\%}{\text{Compound } A: HOCH_2CH_2CH(CH_3)CH_2CH_2COCH_3}$ + $\underset{37\%}{\text{Compound } (B)}$
The value of $(x)$ in the above reaction is: