Chemistry, asked by pranavagrawal14, 10 months ago

colourless concentrated sulphuric acid in a test tube changes to blue on adding a small piece of copper to it​

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Answered by dhakkchamp
0

Answer:

What's ur answer? Please make it clear.

Answered by Priyankakumari14
3

Answer:Colourless concentrated sulphuric acid in a test tube changes to blue an adding a small piece of copper to it because copper displaces hydrogen present in sulphuric acid. as copper attributes blue colour the acid turns blue.

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