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JEE Main 202125 JulyEvening Shift
Exam
JEE Main
Year
2021
Date
25 July
Shift
Evening Shift
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

JEE Main 2021 · 25 July · Evening Shift · Chemistry · General Principles and Processes of Isolation of Metals

Match List I with List II : (Both having metallurgical terms)...

Match List I with List II : (Both having metallurgical terms)

List-I List-II
(a) Concentration of AgAg
ore		 (i) Reverberatory furnace
(b) Blast furnace (ii) Pig iron
(c) Blister copper (iii) Leaching with dilute NaCNNaCN solution
(d) Froth floatation
method		 (iv) Sulfide ores

Choose the correct answer from the options given
below:

Options

  1. A(a)−(iii),(b)−(ii),(c)−(i),(d)−(iv)( a ) - ( iii ) , ( b ) - ( ii ) , ( c ) - ( i ) , ( d ) - ( iv )
  2. B(a)−(iii),(b)−(iv),(c)−(i),(d)−(ii)( a ) - ( iii ) , ( b ) - ( iv ) , ( c ) - ( i ) , ( d ) - ( ii )
  3. C(a)−(iv),(b)−(i),(c)−(iii),(d)−(ii)( a ) - ( iv ) , ( b ) - ( i ) , ( c ) - ( iii ) , ( d ) - ( ii )
  4. D(a)−(iv),(b)−(iii),(c)−(ii),(d)−(i)( a ) - ( iv ) , ( b ) - ( iii ) , ( c ) - ( ii ) , ( d ) - ( i )

Correct answer

A. (a)−(iii),(b)−(ii),(c)−(i),(d)−(iv)( a ) - ( iii ) , ( b ) - ( ii ) , ( c ) - ( i ) , ( d ) - ( iv )

Step-by-step solution

(a) Concentration of AgAg is performed by leaching with dilute NaCNNaCN solution
(b) Pig iron is formed in blast furnace
(c) Blister Cu is produced in Bessemer converter
(d) Froth floatation method is used for sulphide
ores.

Note : During extraction of CuCu reverberatory furnace is involved.

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