After understanding the assertion and reason, choose the correct option.
Assertion : NaCl reacts with concentrated H2SO4 to give colourless fumes with pungent smell. But on adding MnO2 the fumes become greenish yellow.
Reason : MnO2 oxidises HCl to chlorine gas which is greenish yellow.
(a) Assertion and reason are correct and reason is the correct explanation for the assertion.
(b) Assertion and reason are correct but reason is not the correct explanation for the assertion.
(c) Assertion is correct, reason is incorrect.
(d) Assertion is incorrect, reason is correct.
