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The reaction in the Kipp.s apparatus sto...

The reaction in the Kipp.s apparatus stops on closing the outlet, because:

A

The acid becomes weak

B

Gas starts coming out from top

C

A protective film is formed on iron sulphide

D

The contact between sulphide and the acid is broken by the presence of gas collected in the free surface of the middle chamber

Text Solution

Verified by Experts

The correct Answer is:
D
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