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

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a
Rhombic sulphur
b
Monoclinic sulphur
c
Plastic sulphur
d
Colloidal sulphur

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detailed solution

Correct option is D

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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