Which allotropic form of sulphur is obtained on passing H2S gas through nitric acid?

  1. A

    Rhombic sulphur

  2. B

    Monoclinic sulphur

  3. C

    Plastic sulphur

  4. D

    Colloidal sulphur

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    Solution:

    Colloidal sulphur is the form of sulphur that is created when H2S gas is exposed to nitric acid.

     2HNO3+H2SS+2NO2+2H2O 

    Nitric acid is a cold, concentrated solution, whereas hydrogen sulphide is in its saturated state when it combines with nitric acid. This response is moving extremely slowly.

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