1.

Assertion (A) : The ionisation of hydrogen sulphide in water is low in the presence of hydrochloric acid. Reason (R) : Hydrogen sulphide is a weak acid.

Answer»

Both Assertion and REASON are true and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Assertion is true but Reason is FALSE.
Both Assertion and Reason are false.

Solution :Both assertion and reason are correct but reason is not correct explanation of assertion.
HCl gives the COMMON H ions and so IONISATION equilibrium `H_2S hArr 2H^(+) + S^(2-)` is suppressed.


Discussion

No Comment Found