Question

Why should curd and sour substances not be kept in brass and copper vessels?​

Answer 1

Answer:

curd and sour substances contain acids

acid react with copper and brass

Answer 2

Answer:

because the acid present in curd and sour substances react with the metal compounds of copper and brass.

and form harmufull metal compounds

if the curd kept in copper and brass are consumed then it can cause harm to our health and even cause food poisoning