Product $B$ is

Formation of alkane by the action of $Zn$ on alkyl halide is called

Identify the correct catalyst and reaction conditions for the controlled oxidation of methane to $(i)$ methanol $(X)$, $(ii)$ methanal $(Y)$ and ethane to $(iii)$ ethanoic acid $(Z)$.

Given below are two statements $:$
Statement $(I) :$ Neopentane forms only one monosubstituted derivative.
Statement $(II) :$ Melting point of neopentane is higher than $n-$pentane.
In the light of the above statements,choose the most appropriate answer from the options given below $:$

$2, 3-$dimethylhexane contains tertiary,secondary,and primary carbon atoms,respectively:

When the fuel mainly contains ...............,knocking occurs more in the engine.