When alkyl cyanides are hydrolysed to the corresponding carboxylic acids,the gas evolved is:

Grignard reagent $RMgBr$ $(P)$ reacts with water and forms a gas $(Q)$. One gram of $Q$ occupies $1.4 \ dm^3$ at $STP$. $(P)$ on reaction with dry ice in dry ether followed by $H_3O^{+}$ forms a compound $(Z)$. $0.1 \ mole$ of $(Z)$ will weigh . . . . . . $g$. (Nearest integer)

What is obtained by the hydrolysis of methyl cyanide in the presence of an acid?

The major product in the following reaction is:

The reaction $CH_3-CH=CH_2 \xrightarrow{(CO + H_2O)/H^{+}} CH_3-CH(COOH)-CH_3$ is known as:

Find product $V$ in the following reaction sequence:
$CH_3-CH(CH_3)-COOH$ $\xrightarrow[H_3O^{+}]{LiAlH_4} I$ $\xrightarrow{PBr_3} II$ $\xrightarrow[ether]{Mg} III$ $\xrightarrow{CO_2} IV$ $\xrightarrow{H_3O^{+}} V$