Question

O3 react with Mercury

Answer 1

When ozone is passed through mercury, it loses its meniscus and sticks to the glass due to the formation of mercurous oxide. This is called tailing of mercury.

It is one of the test to protect the Ozone. The meniscus can be restored by shaking it with water.

Chemical reaction involved:

2Hg + O3 (ozone) →Hg2O + O2

Answer 2

Since ozone is an oxidising agent, when it reacts with mercury, it oxidises mercury into mercuruous oxide. This also results in change of the oxidation state of mercury. This reactions can be formed as given below:

                   $O_{3} + 2Hg$  →  $Hg_{2}O + O_{2}$

#SPJ2