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Question

Give balanced equations to obtain:

H2S from dil. HCl

A
FeS+2HClFeCl2+H2S
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B
FeS2+HClFeCl2+2H2S
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C
2FeS2+4HCl2FeCl2+2H2S
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D
FeS+2HClFeCl2+2H2S
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Solution

The correct option is A FeS+2HClFeCl2+H2S
The balanced equation for the preparation of H2S from dil HCl is shown below.
FeS+2HClFeCl2+H2S
This is laboratory method. We can also use H2SO4 instead of HCl.

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