When Mercury comes in contact with ozone it loses its meniscus sticks to the walls of the container, known as tailing of mercury. This due to formation of a mercury compound _______________.

Correct Answer: 0

Solution

PLACEHOLDER ANSWER - the answer is a compound. Ozone oxidises mercury to mercurous oxide, $$2\text{Hg} + \text{O}_3 \rightarrow \text{Hg}_2\text{O} + \text{O}_2$$. The $$\text{Hg}_2\text{O}$$ dissolved in the mercury makes it lose its meniscus and stick to the glass.

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