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Which of the following statemetns about ...

Which of the following statemetns about tailing of `Hg` is`//`are correct?

A

It is due to `Hg_(2)O`.

B

It is due to `HgO`

C

It is removed by `H_(2)O_(2)`

D

It is removed by `O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A, C
In tailing of `Hg`, it loses its meniscus and sticks to glass, due to solubility of `Hg_(2)O "in" Hg`, when `Hg` gets
oxidised to `Hg_(2)^(2+)` by `O_(3)`. It is removed by `H_(2)O_(2)`.
`2Hg+O_(3)rarrHg_(2)O+O_(2)`
`Hg_(2)O+H_(2)O_(2)rarr2Hg+H_(2)O+O_(2)`.
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CENGAGE CHEMISTRY-REDOX REACTIONS-Exercises (Multiple Correct)
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  3. The oxidation number of carbon is zero in

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  5. The oxidation number of carboxylic carbon atom in CH(3)COOH is

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  6. Which of the following is//are autoredox reactions?

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  7. Which of the following is// disproportionatin reactions?

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  8. For the reaction KO(2)+H(2)O+CO(2)rarrKHCO(3)+O(2), the mechanism of r...

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  9. Which of the following can be used both as an oxidant and a reductant?

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  10. Which molecule represent by the bold atoms are in their highest oxidat...

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  11. Which molecule represent by the bold atoms are in their lowest oxidati...

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  12. Which of the following statements is//are correct about CH(2)=C Cl(2)

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  13. Which of the following statemetns about tailing of Hg is//are correct?

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  14. Which of the following is//are disproportionation redox changes?

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  16. Which of the following substances undergo(s) disproportionation reacti...

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  17. Which of the following represents redox reactions?

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  18. Consider the redox reaction 2S(2)O(3)^(2-)+I(2)rarrS(4)O(6)^(2-)+2I^...

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  19. Which of the following compounds acts both as an oxidising as wll as a...

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  20. Which of the following reactions does not involve oxidation-reduction ...

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