Question

Write scientific reason.

Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.

Answer 1

1. The greenish colour on copper vessels is due to the formation of copper carbonate on it.
2. Copper carbonate reacts with acids present in lemon or tamarind and as a result, this copper carbonate layer gets removed.
   Hence, Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.