Which gas is produced in the chlor -alkali process ?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Oxygen gas

Carbon dioxide gas

Chlorine gas

Both 2 and 3.

answer is C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Concept- The industrial manufacturing process for NaOH involves electrolysis of brine which is basically common salt dissolved in water. The process is chlor-alkali process.
Brine is basically NaCl(aq) and its electrolysis leads to its decomposition for which the chemical reaction can be written as follows:

As it is evident that during manufacturing of NaOH that it is an alkali,

gas is also produced as a by-product giving the name chlor-alkali to the process. So, we can conclude that Chlorine gas,

, is released.
This gas,

reacts with lime water for which we have chemical formula

and the reaction between the two can be shown by the following chemical equation:

Hence, the correct option is (3).

Watch 3-min video & get full concept clarity