Total number of resonating structures in the following cation.

 

The number of groups showing $+\mathrm{I}$ effect $=\mathrm{X}$.

The number of groups showing $-\mathrm{I}$ effect $=\mathrm{Y}$.

Find the value of $(\mathrm{Y}-\mathrm{X})$, groups are given as follows :

(i) $-\mathrm{Cl}$ (ii)  $-\stackrel{|}{\mathrm{N}}\mathrm{H}$ (iii)  (iv) (v)  (vi)(vii) $-{\mathrm{CCl}}_3$, (viii) $-\stackrel{\oplus }{\mathrm{P}}{\mathrm{H}}_3$ (ix) $-\mathrm{OH}$

How many $\pi$ electron are present in conjugation.

Total number of compound$\left(\mathrm{s}\right)$ among following which will evolve ${\mathrm{H}}_2(\uparrow )$ on reacting with $\mathrm{Na}-$metal is/are :

${\mathrm{CH}}_3-{\mathrm{SO}}_3\mathrm{H}$

Amongst the following, the total number of compounds soluble in aquesous ${\mathrm{NaHCO}}_3$ is:

How many of the following compounds contains higher $\mathrm{C}-\mathrm{H}$ bond energy than $\mathrm{C}-\mathrm{H}$ bond in cychlohexane?