The gas liberated at the anode by the electrolysis of a concentrated aqueous solution of dipotassium succinate is:

What is the major product of the following reaction?
$3$-methylenecyclohexan-$1$-ol + $H_2$ ($1$ eq.) / $Ni$,$\Delta$ $\rightarrow$ ?

The major product formed in the following reaction is:

What is obtained when a mixture of ethylene,carbon monoxide,and water is heated at high temperature?

What is the product obtained when phenylethene is treated with $KMnO_4$ in dilute $H_2SO_4$?

The correct statement$(s)$ for the following addition reactions is(are):
$(i)$ $trans-but-2-ene \xrightarrow{Br_2/CHCl_3} M \text{ and } N$
(ii) $cis-but-2-ene \xrightarrow{Br_2/CHCl_3} O \text{ and } P$
[$A$] ($M$ and $O$) and ($N$ and $P$) are two pairs of diastereomers
[$B$] Bromination proceeds through trans-addition in both the reactions
[$C$] $O$ and $P$ are identical molecules
[$D$] ($M$ and $O$) and ($N$ and $P$) are two pairs of enantiomers