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A mixture of inorganic substances on tre...

A mixture of inorganic substances on treatment with dilute `H_2SO_4` gives out a gas which turns lead acetate paper black while potassium dichromate paper is turned green. The mixture contains

A

Sulphite

B

sulphide

C

nitrate

D

nitrite

Text Solution

Verified by Experts

The correct Answer is:
B
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