JEE Main 2020ChemistryGeneral Principles and Processes of Isolation of MetalsMediumMCQ

JEE Main 2020 — General Principles and Processes of Isolation of Metals Question with Solution

JEE Main 2020 (09 Jan Shift 1)

Question

According to the following diagram, A reduces BO2 when the temperature is:

Choose an option

Show full solutionCorrect option: B
Correct answer
B>1400oC

Step-by-step explanation

A+BO2→B+AO2
This reaction will be spontaneous when
ΔG=−ve

Which we can see from the diagram, is possible only at temperature > 1400 °C

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About this question

This is a previous-year question from JEE Main 2020, covering the General Principles and Processes of Isolation of Metals chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.