The major product of the following reaction,if it occurs by $S_N2$ mechanism is :

The order of reactivity of the following compounds towards the $S_{N}1$ reaction will be:
$(I)$ Benzyl chloride
$(II)$ $p$-Methoxybenzyl chloride
$(III)$ $p$-Nitrobenzyl chloride

The reaction of $1-$chlorobutane with alcoholic potassium hydroxide $(KOH)$ yields .....................

$A$ bottle containing $C_6H_5I$ and $C_6H_5CH_2I$ has lost its label. To identify them,samples $A$ and $B$ are taken in separate test tubes and boiled with $NaOH$ solution. Finally,the solution in each test tube is acidified with dilute $HNO_3$ and then a few drops of $AgNO_3$ solution are added. Substance $B$ gives a yellow precipitate. Which statement is correct for this process?

Write a note on Wurtz Reaction.

The following reaction,$(CH_3)_3CBr + H_2O \to (CH_3)_3COH + HBr$,is an example of: