Question

Temperature is maintained at nearly 200 °C during the laboratory preparation of HCl gas​

Answer 1

Explanation:

In the laboratory preparation of hydrogen chloride from sodium chloride, the gas can be obtained both below and above 200° C. However, the lower temperature is preferred because a higher temperature causes sodium sulphate to form a hard crust, which sticks to the bottom of the flask, and is difficult to remove

Answer 2

Answer:

hydrogen chloride from sodium chloride

Explanation:

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