Alum is double sulphate of trivalent metal like iron, aluminium, chromium etc. and a univalent metal such as potassium or sodium with molecules of water.
e.g. Na2SO4⋅Al2(SO4)3⋅24H2O
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Q1
Which of the following is an example of coordination compound? a)CoCl3.6NH3 b)KCl.MgCl2.6H2O c)FeSO4.6H2O d)FeSO4.(NH4)2SO4.6H2O
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Q2
The colour of FeSO4⋅(NH4)2SO4⋅6H2O is
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Q3
The oxidation state of Fe in FeSO4.(NH4)2SO4.6H2O is .
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Q4
The oxidation state of Fe in FeSO4.(NH4)2SO4.6H2O is