Which reaction is faster $(i)$ or $(ii)$ and what is the mechanism?
$(i) \ CH_3CH_2CH_2Br + CH_3ONa \xrightarrow{DMF} CH_3CH_2CH_2OCH_3 + Br^-$
$(ii) \ CH_3CH_2CH_2Br + CH_3SNa \xrightarrow{DMF} CH_3CH_2CH_2SCH_3 + Br^-$

The major product formed in the dehydrohalogenation reaction of $2-Bromopentane$ is $Pent-2-ene$. This product formation is based on?

$CCl_4 + KOH$ (excess) $\rightarrow$ end product of the reaction is :

$A$ haloalkane undergoes $S_{N}2$ or $S_{N}1$ reaction depending on

Number of moles of $AgCl$ formed in the following reaction is $X$. Identify $X$ from the given reaction.

$A$ 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?