COMEDK-UGET SERIES Chemistry
Concentration Of Ores
2 previous year questions.
Volume: 2 Ques
Yield: Medium
High-Yield Trend
1
2015 1
2014 Chapter Questions 2 MCQs
01
PYQ 2014
easy
chemistry ID: comedk-u
Sodium cyanide is added as a depressant in the froth floatation process when the ore contains a mixture of and . This is because
1
gets precipitated without any effect on
2
forms soluble complex while forms froth
3
forms soluble complex while forms froth
4
gets precipitated without any effect on .
02
PYQ 2015
medium
chemistry ID: comedk-u
The magnetite ore is
1
ferrous oxide
2
ferric oxide
3
ferric hydroxide
4
ferrous-ferric oxide.