JEE Main Chemistry question

ChemistryPrinciples Related to Practical ChemistryJEE Main

The compound which is insoluble in hot water and NH₃ is:

Answer: (C)

Solution

remains insoluble even in hot water and in aqueous ammonia, which is why it is used as a reliable test for the sulphate ion under a range of conditions. (A), though insoluble in cold water, dissolves

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Question ID VK-138032