Question

sodium chloride reacts with concentrated sulphuric acid to evolve a gas. which of the following statement is true regarding the gas?
give reason for your choice.
a. it turns dry blue litmus paper red
b.it turns dry red litmus paper blue
c. it turns moist blue litmus paper red
d. it turns moist red litmus paper blue​

Answer 1

Answer:

Explanation:

The gas evolved is HCl which is acidic.

so, Option C It Turns Moist Blue Litmus Paper red.

2NaCl + H2SO4 --> 2HCl + Na2SO4