Question

What will be the result of subjecting a blue litmus to chlorine gas?

(a) Turn to red only

(b) Remain blue

(c) Turn to white finally

(d) Turn white in the first go

The question was posed to me by my school principal while I was bunking the class.

The above asked question is from P-Block Elements topic in portion P-Block Elements of Chemistry – Class 12

Answer 1

Correct option is (c) Turn to white finally

Explanation: Chlorine bears bleaching properties. When blue litmus is subjected to chlorine gas, it first turns red (due to the acidic nature) then it turns white (due to chlorine’s ability to bleach materials).