Question

why should curd and sour substances not kept in brass and copper vessesls ​

Answer 1

Explanation:

If these kinds of substances which possess acids are kept in copper containers or vessels they will react and produce salt and hydrogen and the vessel will be corroded. It can also produce harmful products that may spoil the food.

Answer 2

Answer:

these kinds of substances which possess acids are kept in copper containers or vessels they will react and produce salt and hydrogen and the vessel will be corroded. It can also produce harmful products that may spoil the food.

Explanation:

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