JEE Main 2022 · 30 Jul · Shift 2 · Chemistry Q36

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ChemistryList match+4 / -1Question 36 of 90

Match List I with List II

Choose the correct answer from the options given below :

List I

A
Cyanide Process
B
Froth flotation process
C
Hall-Heroult process
D
Mond process

List II

I
Vapour phase refining
II
Aluminium
III
Dressing of ZnS
IV
Extraction of Au

A-IV, B-III, C-II, D-I

A-I, B-II, C-III, D-IV

A-II, B-III, C-IV, D-I

A-III, B-II, C-IV, D-I

Answer and worked solution

Official answer: A

Matches. Cyanide process extracts gold (IV); froth flotation dresses ZnS ore (III); Hall-Héroult makes aluminium (II); Mond process is vapour-phase refining of nickel (I).

(A)

Topics:Extraction of specific metals Refining Concentration of ores

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JEE Main 2022 · 30 Jul · Shift 2, Chemistry question 36