Which of the following gives black precipitate with H2S ?
A
Cupric chloride
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B
Cadmium chloride
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C
Zinc chloride
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D
Ferric chloride
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Solution
The correct option is D Ferric chloride Iron from blast furnace is Pig Iron. It is intermediate to form Wrought Iron or Cast Iron. It is the first product from Blast Furnace. After applying some chemical reactions, pure iron will come.