Question

2. Buttermilk spoils if kept in a copper or brass container.
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Answer 1

Answer:

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Answer 2

Answer:

Buttermilk spoils if kept in a copper or brass container because buttermilk is actually lactic acid. Lactic acid reacts with the container material and produces poisonous complex. It is actually the reaction between acid and metal . This reaction is called as electro chemical reaction.

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