Question

(a) Number of compounds which are aromatic = $w$
(b) Number of compounds which are non-aromatic = $x$
(c) Number of compounds which are anti-aromatic = $y$
(d) Number of compounds which are readily undergo Dimerization at room temperature = $z$
Sum of $w+x+y+z=...$

Answer 1

Aromatic compounds are

(a), (b), (f), (h), (i), (j)

$w=6$

Non-aromatic compounds are

(d), (e), (g), (l)

$x=4$

Anti-aromatic compound are

(c), (k)

$y=2$

Only anti-aromatic can undergo dimerisation thus,

$z=2$

So, $w+x+y+z=14$