Question

Why should curd and sour substances not to be kept in
brass and copper Vessels? (Hint: reaction of acid with
metal)​

Answer 1

Answer:

the curd and other sour substances contain some acids in them. they react with copper or brass vessels to form certains salts which are poisonous in nature .....

Explanation:

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Answer 2

Answer:

Explanation: Acids reacts easily with metals to give salt and hydrogen gas. When kept in copper or brass vessels , curd reacts with copper and forms toxic compounds which are not safe for human consuption and may cause poisoning , especially when in contact with food.