Question

Assertion: Tailing of mercury occurs on passing ozone through it.
Reason: Due to oxidation of mercury.

• A. If both Assertion and Reason are true, and Reason is a correct explanation of the Assertion
• B. If both Assertion and Reason are true, but Reason is not a correct explanation of the Assertion
• C. If Assertion is true, but Reason is false
• D. If both Assertion and Reason are false

Answer 1

Answer: (A)

When mercury is exposed to ozone it gets superficially oxidised and loses its meniscus and stitches to the glass.