Hydrogen sulphide is prepared from which of the following substances

Iron sulphide

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Sulphur dioxide

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Sulphur trioxide

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None of the above

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Solution

The correct option is D Iron sulphide
Hydrogen sulfide is usually evolved from iron sulfide, by the following reaction:

$F e S + 2 H C l \to H_{2} S + F e C l_{2}$

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Which among the below mentioned is used to remove the impurity hydrogen sulphide from hydrogen gas:-

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