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The Ellingham diagram for a number of me...

The Ellingham diagram for a number of metallic sulphides is reproduced below.

Answer the questions given below :
(iii) Which of the following sulphides can be reducted to metal by `H_(2)` at about `1000 K` ?

A

`HgS`

B

`PbS`

C

`Bi_(2) S_(3)`

D

All of these

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The correct Answer is:
D
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