Chemistry, asked by hemlatasharmably75, 9 months ago

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

Answers

Answered by sathwikamattipell
26

Answer:

Explanation:

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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