Question

Match items of Column I with the items of Column II and assign the correct code:

Column I	Column II
(A) Cyanide process	(1) Ultrapure \[\ce{Ge}\]
(B) Froth Floatation Process	(2) Dressing of \[\ce{ZnS}\]
(C) Electrolytic reduction	(3) Extraction of \[\ce{Al}\]
(D) Zone refining	(4) Extraction of \[\ce{Au}\]
	(5) Purification of \[\ce{Ni}\]

विकल्प

• A - (4), B - (2), C - (3), D - (1)

• A - (2), B - (3), C - (1), D - (5)

• A - (1), B - (2), C - (3), D - (4)

• A - (3), B - (4), C - (5), D - (1)

Answer 1

A - (4), B - (2), C - (3), D - (1)

Explanation:

Column I	Column II
(A) Cyanide process	(4) Extraction of \[\ce{Au}\]
(B) Froth Floatation Process	(2) Dressing of \[\ce{ZnS}\]
(C) Electrolytic reduction	(3) Extraction of \[\ce{Al}\]
(D) Zone refining	(1) Ultrapure \[\ce{Ge}\]