JEE Advanced 2020 Full Test 2 Paper 1

Show Para Hide Para

© examsiri.com

Question : 26 of 54

Marks: +1, -0

Roasting of copper pyrites is done:

to remove moisture
to oxidise free sulphur
to decompose pyrite into Cu2S and FeS
to remove volatile organic impurities

Go to Question:

Prev Question

Next Question