Civil Engineering - Water Supply Engineering - Discussion

38. 

Alum is chemically

[A]. Copper sulphate
[B]. Aluminium sulphate
[C]. Ferrous sulphate
[D]. Ferric sulphate.

Answer: Option B

Explanation:

No answer description available for this question.

Anupam said: (Apr 27, 2017)  
It is hydrated potassium aluminium sulphate.

Heera said: (Sep 25, 2019)  
Alum = Al2(SO4)3*18H2O.

Aluminium sulfate is a chemical compound with the formula Al2(SO4)3.

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