Haloalkanes and...

For the reaction, the major product is formed by:

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is:

Which of the following solvents is most suitable for $$S_N1$$ reaction?

$$CH_3CHI_2 \xrightarrow{KCN}\, \xrightarrow[\Delta]{H_2O}$$ ?;
Here the end product would be :

What are possible product obtained in the following reaction?
$$(CH_3)_3-C-Br\overset{80\% EtOH}{\underset{20\% H_2O}{\rightarrow}}$$.

$$ CH_{ 3 }CH_{ 2 }Cl\quad \xrightarrow [  ]{ NaCN } \times \xrightarrow [  ]{ Ni/H_{ 2 } } Y $$
Y in the above reacting sequence is:

On reaction of chlorobenzene with acetyl chloride in presence of anhydrous $${ AICl }_{ 3 }$$, the major product formed is:

Which of the following is most reactive towards the $${ S }_{ N }1$$ reaction?

The addition of HBr is easiest with:

The correct statement for $$\alpha $$ elimination is?