JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 25 February 2021, Shift 1, Chemistry Q35

Question 35 of 90 in this shift, Chemistry question 5 of 30, Section A.

Ellingham diagram is a graphical representation of :

(1) $\Delta G$ vs TOfficial answer
(2) $\Delta H$ vs T
(3) $\Delta G$ vs P
(4) $(\Delta G - T\Delta S)$ vs T

Official answer

Option 1

NTA final key.

Chapter: General Principles and Processes of Isolation of Elements
Topic: Metallurgical Extraction
Idea tested: Ellingham Diagram Basics

Same idea in other shifts

Asked 6× in all

26 Jun 2022, Shift 1 · Q67Given below are two statements : Statement I : According to the Ellingham diagram, any metal oxide with higher $\Delta G^\circ$ is more…MediumTwo statements
3 Aug 2021, Shift 1 · Q34Ellingham diagram does not predict theEasySingle correct
26 Aug 2021, Shift 1 · Q35Given below are two statements. Statement I : The choice of reducing agents for metals extraction can be made by using Ellingham diagram,…MediumTwo statements
5 Sep 2020, Shift 1 · Q34An Ellingham diagram provides information about :EasySingle correct
6 Sep 2020, Shift 2 · Q42For a reaction, $4\,\mathrm{M(s)}+n\mathrm{O_2(g)}\rightarrow 2\mathrm{M_2O_n(s)}$ , the free energy change is plotted as a function of…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.