Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Which of the reaction is suitable for concentrating ore by leaching process ?
A
2Cu 2 S + 3O 2 
2Cu 2 O + 2SO 2
2Cu 2 O + 2SO 2
B
Fe 3 O 4 + CO 
3FeO + CO 2
3FeO + CO 2
C
A1 2 O 3 + 2NaOH + 3H 2 O 
2Na[A1(OH) 4
2Na[A1(OH) 4
D
A1 2 O 3 + 6Mg 
6MgO + 4A1
6MgO + 4A1
Text Solution
Verified by ExpertsThe correct answer is:
C
A1 2 O 3 + 2NaOH + 3H 2 O 
2Na, [Al(OH) 4 ]
Leaching.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Match List -1 with List - II
List -I List-II
Which of the following chemical reactions represents Hall-Heroult Process?
Leaching of gold with dilute aqueous solution of NaCN in presence of oxygen gives complex [A], whic…
Given below are two statements.
Statement I: During electrolytic refining, blister copper deposits …
Given below are two statements :
Statement I : According to the Ellingham diagram, any metal oxide …
The role of depressants in Troth Floation method* is to