Aluminum carbide on reaction with $D_2 O$ gives $Al(OD)_3$ and '$X$'. What is '$X$'?

Maximum carbon-carbon bond distance is found in

For the reaction of $2-$methylbutane with $Cl_2$ in the presence of $hv$,let $N$ be the total number of isomeric monochlorinated products (including stereoisomers). If these products are separated by fractional distillation,let $M$ be the number of fractions obtained. Find the values of $N$ and $M$.

At $25,^oC$,Ethylene glycol is a:

The alkane formed on heating sodium butanoate with sodalime is

Complete combustion of $CH_4$ gives