Question

Which of the following product statements regarding chloro methane’s are wrong?

(a) Chlorinated methane’s are used as solvents

(b) Methane chlorination is an endothermic reaction

(c) Azeotropic mixture of HCl-H2O is circulated in the tower, if dry HCl is required

(d) Caustic soda solution is used to remove HCl and CO2 from chlorinated gases

This question was posed to me in final exam.

The above asked question is from C1 Compounds in portion Synthetic Organic Chemical Industries of Chemical Technology

Answer 1

The correct answer is (b) Methane chlorination is an endothermic reaction

Easiest explanation: Methane chlorination is an exothermic reaction; hence it is a wrong statement. The heat evolved is recovered and used for preheating the inlet gas.