Which of the following is not true about potash alum [MNR 1993; UPSEAT

1.	Which of the following is not true about potash alum [MNR 1993; UPSEAT 2002]
A.	Its empirical formula is \[KAl{{(S{{O}_{4}})}_{2}}.12{{H}_{2}}O\]
B.	Its aqueous solution is basic
C.	It is used in dyeing industries
D.	On heating it melts in its water of crystallization
Answer» B. Its aqueous solution is basic

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Which of the following is not true about potash alum [MNR 1993; UPSEAT 2002]

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