Identify the product obtained in the following reaction:
$n CH_3 MgI + n H_2 O \xrightarrow{\text{dry ether}} \text{product}$

When are the compounds called normal $(n-)$? Give an example.

What are $N$ and $M$?

The complete combustion of $CH_4$ gives

Propane molecule on chlorination under photochemical conditions gives two dichloro products,$x$ and $y$. Amongst $x$ and $y$,$x$ is an optically active molecule. How many trichloro products (consider only structural isomers) will be obtained from $x$ when it is further treated with chlorine under photochemical conditions?

Pure methane can be produced by: