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Chemical Properties of Ammonia

Name a gas wh...

Question

Name a gas which turns:
Alkaline pyrogallol solution brown.

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Solution

The gas is Oxygen, $O_{2}$ .
When Alkaline pyrogallol absorbs Oxygen molecules on its surface, it turns brown.
Oxygen gas will not change the color of the litmus paper. Oxygen gas will relight a glowing splint.
Oxygen gas will turn Alkaline pyrogallol solution brown.

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