Question

why brass or copper metals are cleaned with lemon?​

Answer 1

Answer:

lemon is useful in cleaning various things. it's soreness makes it good for cleaning

it is also highly acidic in nature

Answer 2

$\huge\star\mathfrak\red{{Hey Mate...!!}}$

Ans: The citric acid present in the lemon or tamarind neutralises the basis copper carbonate and dissolves the layer. That is why, tarnished copper vessels are cleaned with lemon or tamarind juice to give the surface of the copper vessel its characteristic lustre.