An alkyl halide may be converted into an alcohol by

Acetone is mixed with bleaching powder to give

In $S_{N}2$ reactions,the correct order of reactivity for the following compounds:

Two isomers $(A)$ and $(B)$ with molar mass $184 \ g/mol$ and elemental composition $C, 52.2 \ \%; H, 4.9 \ \%$ and $Br, 42.9 \ \%$ give benzoic acid and $p$-bromobenzoic acid,respectively,on oxidation with $KMnO_4$. Isomer '$A$' is optically active and gives a pale yellow precipitate when warmed with alcoholic $AgNO_3$. Isomer '$A$' and '$B$' are,respectively .... .

Which among the following has the lowest boiling point?

Consider the following reaction and select the best choice that represents the product: