What happens when oxygen reacts with alkaline pyragallol?

dark brown colour is seen

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it forms a complex compound

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black colour is seen

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both A and B

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Solution

The correct option is B both A and B
When oxygen reacts with alkaline pyragallol solution,dark brown colour is seen and it forms a complex compound.

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What happens when oxygen reacts with alkaline pyragallol?

The correct option is B both A and BWhen oxygen reacts with alkaline pyragallol solution,dark brown colour is seen and it forms a complex compound.

The correct option is B both A and B
When oxygen reacts with alkaline pyragallol solution,dark brown colour is seen and it forms a complex compound.