1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Roasting is a process in which the ore is heated strongly in absence of air. Reason: Concentration of sulphide ore is done by calcination.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Assertion : Roasting is a process in which the ore is heated strongly in absence of air.
Reason : Concentration of sulphide ore is done by calcination.

General Principles and Processes of Isolation of Elements

Solution:

Roasting is a process in which the ore is heated in presence of air. Sulphide ores are concentrated mainly by froth floatation process.