Match List I with List II List I

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Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: General Principles and Processes of Isolation of Elements

Question:

Match List I with List II

Options:

A-4; B-3; C-2; D-1

A-3; B-2; C-4; D-1

A-3; B-4; C-2; D-1

A-1; B-4; C-2; D-3

Correct Answer:

A-3; B-4; C-2; D-1

Explanation:

Sapphire is a gemstone that contains Al₂O₃. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide with trace amounts of elements such as iron, titanium, chromium, vanadium.
Sphalerite is ore of zinc. The molecular formula of sphalerite is ZnS.
In the concentration of Galena (PbS) ore, sodium cyanide is added as depressant for zinc sulphide (ZnS).
Corundum is a mineral of aluminium with a molecular formula Al2O3.