Question

Give reason-- If buttermilk spoils if kept INA copper or brass container. Its urgent plz tell

Answer 1

because the acid in the buttermilk will spoil the copper or brass container.it is the reaction between acid +metal this reaction is called electro chemical reaction
eg.lemon in a knife

Answer 2

Simply the buttermilk will react with the brass/copper.

You know buttermilk is lactic acid.Lactic acid reacts with the container material and produces poisonous chemical complex.

So bro,as you already knew it warn your family please.

Thanks.
Tripathy.