Directions for Question: The questions consist of two statements each, printed as assertion and reason. While answering these questions you are required to choose any one of the following four responses:
Assertion: Taillag of mercury occurs on passing 12 ozone through it. Reason: Due to oxidation of mercury.A) If both A and R are true, and R is a correct explanation of the A.
B) If both A and R are true, but R is not a correct explanation of the A.
C) If A is true, but R is false.
D) If both A and R are false.
Correct Answer: A
Solution :
When mercury is exposed to ozone it get superficially oxidised and loses its meniscus and stitches to the glass.
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