Question

Match the column I with column II and mark the appropriate choice.

	Column I		Column II
$\left(A\right)$	Alkyl halide + Sodium in presence of dry ether	$\left(i\right)$	Sulphonation
$\left(B\right)$	Arene + Acid halide in presence of $AlC{l}_3$	$\left(ii\right)$	Wurtz reaction
$\left(C\right)$	Arene + Fuming sulphuric acid	$\left(iii\right)$	Catalytic hydrogenation
$\left(D\right)$	Arene + Hydrogen in presence of $Ni$	$\left(iv\right)$	Friedel-Crafts reaction

• A. $\left(A\right)\to \left(i\right),\left(B\right)\to \left(iii\right),\left(C\right)\to \left(ii\right),\left(D\right)\to \left(iv\right)$
• B. $\left(A\right)\to \left(iv\right),\left(B\right)\to \left(ii\right),\left(C\right)\to \left(iii\right),\left(D\right)\to \left(i\right)$
• C. $\left(A\right)\to \left(iii\right),\left(B\right)\to \left(i\right),\left(C\right)\to \left(iv\right),\left(D\right)\to \left(ii\right)$
• D. $\left(A\right)\to \left(ii\right),\left(B\right)\to \left(iv\right),\left(C\right)\to \left(i\right),\left(D\right)\to \left(iii\right)$

Answer 1

Answer: (D)

$\left(A\right)\to \left(ii\right),\left(B\right)\to \left(iv\right),\left(C\right)\to \left(i\right),\left(D\right)\to \left(iii\right)$

(A) Alkyl halide + Sodium in presence of dry ether $\to$ The reaction is known as Wurtz's reaction in which two alkyl halide unites to form one alkane $\to$ (ii).

$R-Cl+2Na+Cl-R\stackrel{ether}{\to }R-R+2NaCl$

(B) Arene + Acid halide in presence of $Al{Cl}_3\to$ The reaction is known as Freidel-craft's reaction $\to$ (iv).

(C) Arene + Fuming sulphuric acid $\to$ The reaction is known as Sulfonation which is a reversible reaction that produces benzenesulfonic acid by adding sulfur trioxide and fuming sulfuric acid $\to$ (i).

(D) Arene + Hydrogen in presence of $Ni$ $\to$ The reaction is known as Catalytic hydrogenation $\to$ (iii).