MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic Chemistryp-Block (group 13 and 14)Previous Year Questions

Value of x in potash alum, K₂SO₄.Alx (SO₄)₃ . 24H₂O is (CPMT 2007)

A.4

B.1

C.2✓ Correct

D.None of these

Explanation

n factor of potash alum is equal to total positive or negative charge on the salt. n factor for potassium alum is +8. So, Total charge on K ions + Total charge on Al ions = 8 Hence, the correct option is (c).

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