Question

hy why should curd and sour Substances
not be kept
In bress and copper vessels​

Answer 1

$\huge\underbrace\mathfrak\pink{Answer:-}$

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• Both the Curd and sour substances are acids. Acids react with metals to produce salt and hydrogen gas. So, if such substances are kept in a copper container, the acid will react and the container will be corroded. Thereby may spoil the food.

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Answer 2

Answer:

curd is acidic and it can react with metal and form corresponding salt