In the reaction of $1$-vinyl-$-2$-bromoethylbenzene with $HBr$,the major product is:

Will $CCl_4$ give a white precipitate of $AgCl$ on heating it with silver nitrate? Give a reason for your answer.

Given below are two statements:
Statement $I$: $(CH_3)_3C-CH_2-Cl$ will undergo $S_N1$ reaction even though it is a primary halide.
Statement $II$: It will not undergo $S_N2$ reaction very easily even though it is a primary halide.
In the light of the above statements, choose the most appropriate answer from the options given below:

The products $A$ and $B$ formed in the above reactions are

When $2-$bromobutane reacts with alcoholic $KOH$,the reaction is called

In an $S_N1$ reaction on chiral centres,there is