JEE Main 2014 · 11 Apr · Shift 1 · Chemistry Q56

ChemistrySingle correct+4 / -1Question 56 of 90

Chlorobenzne reacts with trichloro acetaldehyde in the presence of $\ce{H2SO4}$
$\ce{2C6H5Cl + H-C(=O)-CCl3 ->[H2SO4]}$
The major product formed is :

\ce{(ClC6H4)2CCl2}

(two 4-chlorophenyl groups on a

\ce{CCl2}

carbon)

\ce{(ClC6H4)2C(Cl)CH2Cl}

\ce{(ClC6H4)2CH-CCl3}

(DDT)

\ce{(ClC6H4)2CHCl}

Answer and worked solution

Official answer: C

Under acid, chloral condenses with two molecules of chlorobenzene at their para positions, giving DDT, $\ce{(p-ClC6H4)2CH-CCl3}$ .

JEE Main 2014 · 11 Apr · Shift 1, Chemistry question 56