Chemical Engineering - Chemical Process - Discussion

3. 

Starting raw material for the manufacture of alum is

[A]. alumina
[B]. gypsum
[C]. bauxite
[D]. ammonium bicarbonate

Answer: Option C

Explanation:

No answer description available for this question.

Sujeet said: (Oct 3, 2012)  
Please give the explanation.

Kiran said: (Nov 12, 2015)  
Gypsum is a sulfate mineral composed of calcium sulfate dehydrate, with the chemical formula CaSO42h2o. Bauxite is correct answer.

India said: (Jul 9, 2017)  
Why not alumina?

Fadhlah Sylum said: (Sep 28, 2017)  
You can't get alumina if you did not extract aluminum ore. Alumina is obtained after you remove all the impurities from the aluminum ore.

Ramesh Vishawkarma said: (Dec 5, 2017)  
Bauxide is right answer because Bauxide have 58% alumina find.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.