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On being strongly heated, which of the f...

On being strongly heated, which of the following substances will leave a black residue

A

`CuSO_(4), 5H_(2)O`

B

`ZnCO_(3)`

C

`PbCO_(3)`

D

`MnSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
CuS formed
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