Question

Tailing of mercury is
N2O
HgO
Hg2O
SiO2​

Answer 1

Answer:

Hg2O

Explanation:

Ozone is oxidizing agent. when ozone is passed through mercury, ozone reacts with mercury and forms mercurous oxide.

2Hg+O3=Hg2O+O2

Answer 2

Answer:

The correct answer is Hg2O.

Explanation:

• When ozone reacts with mercury it forms mercury oxide . The mercurous oxide sticks to the glass as Meniscus of mercury  is lost during this reaction . Ozone is a very strong oxidising agent , as due to presence of nascent oxygen . Therefore Ozone reacts with mercury and oxidizes it to mercurous oxide . Due to this phenomenon mercury looses its meniscus and it sticks to the glass.  This phenomenon  is known as tailing of mercury.

• The first option is incorrect because this reaction does not involve nitrogen at all , therefore product should not comes in the term of nitrogen.

• The last option is incorrect because it does not involve silicon at all , therefore product should not comes in the term of the silicon.

Therefore the correct answer is Hg2O

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