Tertiary alkyl halides are practically inert to substitution by $S_N2$ mechanism because of:

The product of the reaction is:

Which of the following alkyl halides is the fastest to undergo dehydrohalogenation with a base?

In an $S_N2$ reaction on a chiral carbon atom,what is always produced?

$Methyl$ chloride reacts with silver acetate to yield:

$A$ $(C_{4}H_{8}Cl_{2})$ $\xrightarrow{\text{Hydrolysis at } 373 \text{ K}}$ $B$ $(C_{4}H_{8}O)$
$B$ reacts with hydroxylamine but does not give Tollen's test. Identify $A$ and $B$.