Metallurgy JEE Main PYQs, 2020 to 2023

Metallurgy has 73 questions in JEE Main papers from 2020 to 2023, about 18 per year across all shifts. The most asked topic is Extraction of Fe, Cu, Zn, Al (20 questions), followed by Refining Methods (15) and Reduction Methods (14).

Updated 26 Sep 2026

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73Total PYQs

4Years covered

5Topics

2023 Apr S1Latest paper

Metallurgy questions per year

Year	Questions
2023	18
2022	19
2021	28
2020	8

Topic-wise weightage

Topic	Questions	Share of chapter	Last asked
Extraction of Fe, Cu, Zn, Al	20	27%	2023
Refining Methods	15	21%	2023
Reduction Methods	14	19%	2023
Concentration of Ores	13	18%	2023
Minerals and Ores	11	15%	2023

Sample questions from recent papers

JEE Main 2023 · 15 Apr · Shift 1 · Concentration of Ores

Which one of the following is not an example of calcination?

(A) $\mathrm{CaCO}_{3} \cdot \mathrm{MgCO}_{3} \stackrel{\Delta}{\longrightarrow} \mathrm{CaO}+\mathrm{MgO}+2 \mathrm{CO}_{2}$
(B) $2 \mathrm{PbS}+3 \mathrm{O}_{2} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{PbO}+2 \mathrm{SO}_{2}$
(C) $\mathrm{CaCO}_{3} \stackrel{\Delta}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_{2}$
(D) $\mathrm{Fe}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O} \stackrel{\Delta}{\longrightarrow} \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{xH}_{2} \mathrm{O}$

Answer: (B)

Step-by-step solution

JEE Main 2023 · 13 Apr · Shift 2 · Reduction Methods

Given below are two statements related to Ellingham diagram:

Statement I : Ellingham diagrams can be constructed for formation of oxides, sulfides and halides of metals.

Statement II : It consists of plots of $\Delta_{\mathrm{f}} \mathrm{H}^{0}$ vs $\mathrm{T}$ for formation of oxides of elements.

In the light of the above statements, choose the most appropriate answer from the options given below:

(A)Both Statement I and Statement II are correct
(B)Both Statement I and Statement II are incorrect
(C)Statement I is correct but Statement II is incorrect
(D)Statement I is incorrect but Statement II is correct

Answer: (C)

Step-by-step solution

JEE Main 2023 · 11 Apr · Shift 1 · Extraction of Fe, Cu, Zn, Al

In the extraction process of copper, the product obtained after carrying out the reactions

(i) $2 \mathrm{Cu}_{2} \mathrm{~S}+3 \mathrm{O}_{2} \rightarrow 2 \mathrm{Cu}_{2} \mathrm{O}+2 \mathrm{SO}_{2}$

(ii) $2 \mathrm{Cu}_{2} \mathrm{O}+\mathrm{Cu}_{2} \mathrm{~S} \rightarrow 6 \mathrm{Cu}+\mathrm{SO}_{2}$ is called

(A)Copper matte
(B)Blister copper
(C)Reduced copper
(D)Copper scrap

Answer: (B)

Step-by-step solution

JEE Main 2023 · 29 Jan · Shift 1 · Refining Methods

The reaction representing the Mond process for metal refining is _________.

(A) $\mathrm{ZnO+C\buildrel \Delta \over \longrightarrow Zn+CO}$
(B) $\mathrm{2K[Au(CN)_2]+Zn\buildrel \Delta \over \longrightarrow K_2[Zn(CN)_4]+2Au}$
(C) $\mathrm{Zr+2I_2 \buildrel \Delta \over \longrightarrow ZrI_4}$
(D) $\mathrm{Ni+4CO\buildrel \Delta \over \longrightarrow Ni(CO)_4}$

Answer: (D)

Step-by-step solution

JEE Main 2023 · 29 Jan · Shift 2 · Minerals and Ores

The major component of which of the following ore is sulphide based mineral?

(A)Sphalerite
(B)Siderite
(C)Malachite
(D)Calamine

Answer: (A)

Step-by-step solution

All 73 questions are in the free PDF above, grouped by topic.

Frequently asked

How many questions come from Metallurgy in JEE Main?

73 questions from 2020 to 2023, about 18 per year. In 2023 it had 18.

Which Metallurgy topics are most important for JEE Main?

By past papers: Extraction of Fe, Cu, Zn, Al (27%), Refining Methods (21%) and Reduction Methods (19%) of all Metallurgy questions.

Is the Metallurgy PYQ PDF free?

Yes. The PDF, the answer key and every step-by-step solution on PrepWiser are free, with no login needed to practise.

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JEE Main PYQs by year: 2025 · 2024 · 2023 · 2022 · 2021 · 2020

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