The main component of marsh gas is ......... .

Consider the given sequence of reactions.
$C_2H_6 + \frac{3}{2}O_2$ $\xrightarrow[\Delta]{(CH_3COO)_2Mn} X$ $\xrightarrow{NaOH} Y$
Electrolysis of aqueous solution of $Y$ gives gases $P$ and $Q$ at anode. $P$ and $Q$ are respectively.

Which of the following statements is correct for the homologous series of alkanes?

The Newman projection of the staggered conformation of ethane is:

When a mixture of methane and oxygen is passed over heated molybdenum oxide, the product obtained is ........ .

What are $N$ and $M$?