Question

Buttermilk spoils if kept in a copper or brass vessel give reason​

Answer 1

Answer:

buttermilk spoils is kept in a copper or brass container because buttermilk is actually lactic acid lactic acid reacts with a container material and produce poisonous complex.

Explanation:

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Answer 2

Buttermilk constitutes curd which generally contains lactic acid. When kept in copper or brass vessel; the lactic acid present in the buttermilk reacts with the copper or brass metal giving metal salts. Thus this spoils the buttermilk and gives an unpleasant taste.

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