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Get Answers to all your Questions
Q. Why should curd and sour substances not be kept in brass and copper vessels?
Answers (2)
Curd and sour substances not be kept in brass and copper vessels because curd and other sour substances contain acids.
Therefore, when they are kept in brass and copper vessels, the metal reacts with the acid to liberate hydrogen gas and harmful products, thereby may spoil the food.
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As we know metal reacts with acid produces the salt hydrogen gas
ACID + METAL ------ SALT + HYDROGEN GAS
So, curd is acidic in nature which reacts with brass or copper metals when it is stored in forms hydrogen gas and spoils the curd or food
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