Which of the sulphide is yellow? (a) \( \mathrm{ZnS} \) (b) \( \mathrm{CdS} \) (c) \( \mathrm{Ni...

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Which of the sulphide is yellow?
(a) \( \mathrm{ZnS} \)
(b) \( \mathrm{CdS} \)
(c) \( \mathrm{NiS} \)
(d) \( \mathrm{PbS} \)
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