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Which of the following is not true about...

Which of the following is not true about potash alum

A

Its empirical formula is `KAl(SO_(4))_(2).12H_(2)O`

B

Its aqueous solution is basic

C

It is used in dyeing industries

D

On heating it melts in its water of crystallization

Text Solution

Verified by Experts

The correct Answer is:
B
Potash alum: `K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O`
Empirical formula : `Kal(SO_(4))_(2).12H_(2)O`
Its aqueous solution is acidic due to cationic hydrolysis
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