Which major product is formed when excess of methane is treated with chlorine in the presence of $UV$ light?

The major product of which of the following reactions will not decolorize $Br_2 + H_2O$?

$CH_3-CH(CH_3)-CH_2-CH_3 \xrightarrow{Cl_2/h\nu} N$ (number of isomers) $\xrightarrow{\text{Fractional distillation}} (F)$. Find $N$ and $F$.

How many carbon atoms does an alkane (not a cycloalkane) need before it is capable of existing in an enantiomeric form?

Which of the following compounds is least soluble in water at $STP$?

Given below are two statements :
Statement-$I$ : $2-$methylbutane on oxidation with $KMnO_4$ gives $2-$methylbutan$-2-$ol.
Statement-$II$ : $n-$alkanes can be easily oxidised to corresponding alcohol with $KMnO_4$.
Choose the correct option: