Ammonium chloride dissolves in water with the absorption of heat. Which of the following is true?

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The solubility of ammonium chloride decreases with increase in temperature

At higher temperature, ammonium chloride in solution exists as ammonia and hydrochloric acid

The solubility of ammonium chloride increases with increase in temperature

At lower temperature ammonium chloride in solution is present in the molecular form

answer is B.

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Detailed Solution

Ammonium chloride dissolves in water with the absorption of heat due to which the solubility of ammonium chloride increases with an increase in temperature

Since the process of dissolving ammonium chloride is endothermic and does not entirely dissolve when water is added, the dissociation of ammonium chloride increases as temperature rises.

Hence option B is correct

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