In nucleophilic aliphatic substitution,the nucleophiles are generally

The product obtained by the reaction of propene with $ICl$ is .............

$A$ solution of $(\pm)-2$-chloro-$2$-phenylethane in toluene is mixed slowly with a small amount of $SbCl_5$. The reaction proceeds due to the formation of:

In the given reaction
$CH_3-CH(OTs)-CH_2-CH_2-CH(OTs)-CH_3$ $\xrightarrow[(ii) \ KOH]{(i) \ SH^{\ominus} (one \ equivalent)}$ $[X]$
$[X]$ will be :

Identify $Z$ in the following series of reactions:

The following reaction belongs to $(CH_3)_3CBr \xrightarrow{H_2O} (CH_3)_3COH$.