P-Block Elements Ques 523

Question: Which statement is not true about potash alum?

Options:

A) On heating it melts and loses its water of crystallization.

B) It’s aqueous solution is basic in nature.

C) It is used in dyeing industries.

D) It’s empirical formula is KAl(SO4)2.12H2O.

Show Answer

Answer:

Correct Answer: B

Solution:

Alum form acidic solution due to hydrolysis of Al3+ .



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