1
JEE Main 2022 (Online) 24th June Evening Shift
Numerical
+4
-1
(a) Baryte, (b) Galena, (c) Zinc blende and (d) Copper pyrites. How many of these minerals are sulphide based?
Your input ____
2
JEE Main 2021 (Online) 31st August Evening Shift
Numerical
+4
-1
In the electrolytic refining of blister copper, the total number of main impurities, from the following, removed as anode mud is ______________
Pb, Sb, Se, Te, Ru, Ag, Au and Pt
Pb, Sb, Se, Te, Ru, Ag, Au and Pt
Your input ____
Questions Asked from Isolation of Elements (Numerical)
Number in Brackets after Paper Indicates No. of Questions
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JEE Main 2021 (Online) 31st August Evening Shift (1)
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