D-And F-Block Elements Ques 356

Question: The test of ozone $ O_3 $ can be done by

[AFMC 1997]

Options:

A) $ Ag $

B) $ Hg $

C) $ Au $

D) $ Cu $

Show Answer

Answer:

Correct Answer: B

Solution:

$ 6Hg+O_3,\to ,\underset{\text{Mercurous oxide}}{\mathop{3Hg_2O}}, $

During this reaction, mercury loses its miniscus and starts sticking glass.



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