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What is tailing of mercury ?...

What is tailing of mercury ?

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Mercury does not stick to glass surface. However when oxidised by `O_3` to mercurous oxide, `Hg_2 O` it starts sticking to glass surface. It is called failing of mercury.
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ACCURATE PUBLICATION-P-BLOCK ELEMENTS-P-BLOCK (GROUP-16) (OXYGEN FAMILY )(2 OR 5 MARK QUESTIONS)
  1. How would you account for the following : Sulphur has a great tendency...

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  2. Oxygen gas is inert at room temperature why?

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  3. Comment on nature of two S-O bond formed in SO2 molecule. Are the two ...

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  4. Why SF6 is known but OF6 is not known

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  5. Elements of Group 16 generally show lower value of first ionisation en...

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  6. Oxygen gas is inert at room temperature why?

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  7. Milk to cheese is an example of change.

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  8. What is the use of ozone layer?

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  9. What is tailing of mercury ?

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  10. Which form of sulphur shows paramagnetic behaviour and why ?

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  11. Why conc. sulphuric acid is always diluted by adding sulphuric acid to...

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  12. Explain the reducing character of 16th group.

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  13. What is the shape of ozone molecule ?

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  14. Sulphur hexafluoride is used as a gaseous electrical insulator. Explai...

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  15. Discuss the favourble conditions for the manufacture of sulphur trioxi...

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  16. Oleum is: H2S2O7, H2S2O6, H4S2O7, H3S2O7.

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  17. Why does O3 act as a powerful oxidising agent ?

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  18. Explain the manufacture of sulphuric acid by contact process.

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  19. How will ozone oxidise the following : Potassium nitrite to potassium ...

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  20. Draw Flow Chart diagram of Contact Process.

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