1
JEE Advanced 2013 Paper 2 Offline
MCQ (More than One Correct Answer)
+3
-0.75
The carbon–based reduction method is NOT used for the extraction of
A
tin from SnO2
B
iron from Fe2O3
C
aluminium from Al2O3
D
magnesium from MgCO3.CaCO3
2
IIT-JEE 2011 Paper 1 Offline
MCQ (More than One Correct Answer)
+2
-0.5
Extraction of metal from the ore cassiterite involves
A
carbon reduction of an oxide ore
B
self-reduction of a sulphide ore
C
removal of copper impurity
D
removal of iron impurity
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