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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 :
(i) Formation of which of the sulphidesis not spontaneous ?

A

HgS

B

`Bi_(2)S_(3)`

C

PbS

D

`Cs_(2)`

Text Solution

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The correct Answer is:
c
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