Which of the following is not true about potash alum - Vidyadip

MCQ

Which of the following is not true about potash alum

✓
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

Correct option: A.

Its empirical formula is $KAl{(S{O_4})_2}.12{H_2}O$

a
It’s Obvious.

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