Q.
The correct sequence of correct reagents for the following transformation is :-
Solution:
Correct answer is (c) (i) $Cl _{2}, FeCl _{3}$
(ii) $Fe , HCl$
(iii) $NaNO _{2}, HCl , 0^{\circ} C$
(iv) $H _{2} O / H ^{+}$
