Match the compound with the metal for which it is used for …

Chemistry Purification, Classification and Nomenclature of Organic Compounds NTA Abhiyas Question - Metallurgy Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Match the compound with the metal for which it is used for the process of extraction.

(i) NaCN

Titanium (ii) Iodine (i)- ,(iii)- ,(ii)- ,(iii)-

Aluminium (iii) Cryolite (i)- ,(iii)- ,(ii)-

Silver ore ,(ii)- ,(ii)- (i)- ,(iii)-

(i)-

Text Solution

Verified by Experts

The correct answer is:

(i)- ,(ii)- ,(iii)-

(i) Role of NaCN in the extraction of silver is to do the leaching of silver ore in the presence of air from which the silver is obtained later by

4Ag(s) + 8CN - (aq) + 2H 2 O(aq) + O 2 (g) [Ag(CN) 2 ] - (aq) +4OH - (aq)

replacement

2[Ag(CN) 2 ] - (aq) +Zn(s) 2Ag(s) + [Zn(CN) 4 ] 2- (aq)

(ii) (Van-Arkel method)

(iii) In the metallurgy of aluminium, cryolite lowers the melting point of the mixture and improves the electrical conductivity of the cell.

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