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You must have seen tarnished copper vess...

You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Text Solution

Verified by Experts

The sour substances such as lemon (or tamarind juice) contain acids. These acids dissolve the coating of cpper oxide or basic copper carbonate present on the surface of tarnished copper vessel and makes them shining red-brown again.
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