A) \[AgCl\]
B) \[Ag\]
C) \[Hg\]
D) \[{{H}_{2}}{{O}_{2}}\]
Correct Answer: C
Solution :
Ozone oxidise mercury into mercurous oxide, which sticks with the walls of glass container while mercury does not do so. The process is known as tailing of mercury. Thus presence of ozone can be distinguished by using Hg.
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