Which one of the following statements is false? | CGP Edu

Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) Karnataka - CET Previous Year Question Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Which one of the following statements is false?

A

During roasting, moisture is removed from the ore.

B

The ore is freed from almost all nonmetallic impurities.

C

Calcination of ore is carried out in the absence of any blast of air.

D

The concentrated zinc blende is subjected to calcination during its extraction by pyrometallurgy.

Text Solution

Verified by Experts

The correct answer is:

: The concentrated zinc blende (sulphide ore) is subjected to roasting not to calcination because calcination process is used for carbonate ores whereas roasting is used for sulphide ores.

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