Which of the following has the lowest boiling point?

How many conformations of alkane are present? Why?

Which compound in the following will give only one mono-chlorination product in the presence of light?

The reactions which produce alcohol as the product are:
$A$. $CH_{4} + O_{2} \xrightarrow{Mo_{2}O_{3}}$
$B$. $2CH_{3}CH_{3} + 3O_{2} \xrightarrow[\Delta]{(CH_{3}COO)_{2}Mn}$
$C$. $(CH_{3})_{3}CH \xrightarrow{KMnO_{4}}$
$D$. $2CH_{4} + O_{2} \xrightarrow{Cu/523 \ K/100 \ atm.}$
$E$. $CH_{3}CH=CHCH_{3} \xrightarrow{KMnO_{4}/H^{+}}$
Choose the correct answer from the options given below:

Write about the Wurtz reaction or describe the preparation of alkanes from alkyl halides via the Wurtz reaction,including examples and its limitations.

Which of the following alkanes cannot be made in good yield by the Wurtz reaction?