Question

why is laboratory preparation of hydrochloric acid the temperature of the reaction mixture is kept below 200 degree​

Answer 1

Answer:

The temperature of the reaction should be maintained at or below 2000C because above this temperature, sodium sulphate forms a hard crust, which sticks to the bottom of the flask, and is difficult to remove.

Explanation:

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Answer 2

Answer:

Answer. We can prepare hydrochloric acid in the laboratories by the chemical reaction of sodium chloride salt and sulfuric acid. The production of the hydrochloric acid above 200° becomes more rapid than the production of hydrochloric acid below 200°.