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JEE General Principles and Processes of Isolation of Metals PYQs with Solutions

226 previous year questions from General Principles and Processes of Isolation of Metals (JEE Main & Advanced Chemistry) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

226 questionsChemistry2002–2024Answers + solutions

About General Principles and Processes of Isolation of Metals PYQs

General Principles and Processes of Isolation of Metals has 226 previous year questions in the Quantrex Academy JEE Main & Advanced Chemistry bank. The 220 questions in this list come from JEE Main (120), NTA Abhyas JEE Main (75), JEE Advanced (23) and 1 other source, spanning 2002 to 2024. Each question opens on its own page with the options, the correct answer and the worked solution where available.

JEE General Principles and Processes of Isolation of Metals PYQs with Solutions

About General Principles and Processes of Isolation of Metals PYQs

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General Principles and Processes of Isolation of Metals questions with solutions

Identify the incorrect pair from the following :

The correct statement(s) related to processes involved in the extraction of metals is(are)

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

Given below are two statements related to Ellingham diagram : Statement I : Ellingham diagrams can be constructed for formation of oxides, sulphides and halides of metals.

Which one of the following is most likely a mismatch?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In the Ellingham diagram, a sharp change in slope of the line is

Given below are two statements: Statement I: In the metallurgy process,sulphide ore is converted to oxide before reduction. Statement II: Oxide ores in general are easier to

In the extraction process of copper, the product obtained after carrying out the reactions (i)2 Cu _ 2 S + 3 O _ 2 ⟶ 2 Cu _ 2 O + 2 SO _ 2 (ii)2 Cu _ 2 O + Cu _ 2 S ⟶ 6Cu + SO _ 2

Which of the following is used as a stabilizer during the concentration of sulphide ores?

In Hall-Heroult process, the following is used for reducing Al _ 2 O _ 3 :-

Which of the following metals can be extracted through alkali leaching technique?

Among following compounds, the number of those present in copper matte is A. CuCO _ 3 B. Cu _ 2 S C. Cu _ 2 O D. FeO

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : In an Ellingham diagram, the oxidation of carbon to carbon

Which one of the following statements is incorrect ?

The methods NOT involved in concentration of ore are (A) Liquation (B) Leaching (C) Electrolysis (D) Hydraulic washing (E) Froth floatation Choose the correct answer from the

Given below are two statements: Statement I: During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is used as cathode. Statement II

In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:

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

The reaction representing the Mond process for metal refining is ______

Given below are two statements:- Statement I:- In froth floatation method a rotating paddle agitates the mixture to drive air out of it. Statement II:- Iron pyrites are generally

Which one of the following reactions does not occur during extraction of copper ?

The metal which is extracted by oxidation and subsequent reduction from its ore is :

Match List I with List II. List I List II A. Reverberatory furnace I. Pig iron B. Electrolytic cell II. Aluminium C. Blast furnace III. Silicon D. Zone refining furnace IV. Copper

The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range 900 - 1500K is(are)

The electrochemical extraction of aluminium from bauxite ore involves

In liquation process used for tin (Sn) , the metal

In metallurgy the term &quot;gangue&quot; is used for

Which of the reaction is suitable for concentrating ore by leaching process?

Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores of iron is

Which of the following methods are not used to refine any metal? (A) Liquation (B) Calcination (C) Electrolysis (D) Leaching (E) Distillation Choose the correct answer from the

The metal that is not extracted from its sulphide ore is

Refining using liquation method is the most suitable for metals with

Given below are two statements. Statement I : Pig iron is obtained by heating cast iron with scrap iron. Statement II : Pig iron has a relatively lower carbon content than that of

The compound(s) that is(are) removed as slag during the extraction of copper is : (1) CaO (2) FeO (3) Al _ 2 O _ 3 (4) ZnO (5) NiO Choose the correct answer from the options given

Match List I with List II . List I With Ore List II Composition A.Siderite I. FeCO _ 3 B.Malachite II. CuCO _ 3 · Cu ( OH ) _ 2 C.Sphalerite III. ZnS D.Calamine IV. ZnCO _ 3

In isolation of which one of the following metals from their ores, the use of cyanide salt is commonly not involved?

In the metallurgical extraction of copper, following reaction is used : FeO + SiO _ 2 → FeSiO _ 3 FeO and FeSiO _ 3 respectively are.

Given are two statements one is labelled as Assertion and other is labelled as Reason. Assertion : Magnesium can reduce Al _ 2 O _ 3 at a temperature below 1350 ° C , while above

Statement I: Leaching of gold with cyanide ion in absence of air / O _ 2 leads to cyano complex of Au (III). Statement II: Zinc is oxidized during the displacement reaction

Match List - I with List - II. List-I List-II A Concentration of gold ore I Aniline B Leaching of alumina II NaOH C Froth stabiliser III SO _ 2 D Blister copper IV NaCN Choose the

The role of depressants in &#39;Froth Floation method&#39; is to

Given below are two statements : Statement I : According to the Ellingham diagram, any metal oxide with higher Δ G ° is more stable than the one with lower Δ G ° . Statement II

Given below are two statements. Statement I: During electrolytic refining. blister copper deposits precious metals. Statement II: In the process of obtaining pure copper by

Leaching of gold with dilute aqueous solution of NaCN in presence of oxygen gives complex [A] , which on reaction with zinc forms the elemental gold and another complex [B] . [A]

Which of the following chemical reactions represents Hall-Heroult Process?

(a) Baryte, (b) Galena, (c) Zinc blende and (d) Copper pyrites. How many of these minerals are sulphide based?

Match List - I with List - II : List-I List-II (A) Sphalerite (I) FeCO _ 3 (B) Calamine (II) PbS (C) Galena (III) ZnCO _ 3 (D) Siderite (IV) ZnS Choose the most appropriate answer

The correct statement (s) related to the metal extraction processes is(are)

Calamine and Malachite, respectively, are the ores of :

In the electrolytic refining of blister copper, the total number of main impurities, from the following, removed as anode mud is ___________ . Pb, Sb, Se, Te, Ru, Ag, Au and Pt

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Treatment of bromine water with propene yields

Match List-I with List-II : List-I (Name of ore/mineral) List-I (Chemical formula) a Calamine i ZnS b Malachite ii FeCO _ 3 c Siderite iii ZnCO _ 3 d Sphalerite iv CuCO _ 3 · Cu (

Which refining process is generally used in the purification of low melting metals?

Given below are two statements: Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper. Statement II : It is possible to separate two

Given below are two statements. Statement I: The choice of reducing agents for metals extraction can be made by using the Ellingham diagram, a plot of vs temperature. Statement

The addition of silica during the extraction of copper from its sulphide ore :-

The statement that is INCORRECT about Ellingham diagram is

Match List I with List II : (Both having metallurgical terms) List-I List-II (a) Concentration of Ag ore (i) Reverberatory furnace (b) Blast furnace (ii) Pig iron (c) Blister

In the leaching of alumina from bauxite, the ore expected to leach out in the process by reacting with NaOH is :

Sulphide ion is soft base and its ores are common for metals (a) Pb (b) Al (c) Ag (d) Mg Choose the correct answer from the options given& below& &

Consider two chemical reactions (A) and (B) that take place during metallurgical process: (A) ZnCO _ 3(s) Δ ⟶ ZnO _ (s) + CO _ 2(g) (B) 2 ZnS _ (s) + 3 O _ 2(g) Δ ⟶ 2 ZnO _ (s) +

The metal that can be purified economically by fractional distillation method is:

Match list-I with list-II : List-I List-II (a) Mercury (i) Vapour phase refining (b) Copper (ii) Distillation refining (c) Silicon (iii) Electrolytic refining (d) Nickel (iv) Zone

The chemical that is added to reduce the melting point of the reaction mixture during the extraction of aluminium is:

Match List-I and List-II : List-I List-II a Haematite i Al _ 2 O _ 3 · xH _ 2 O b Bauxite ii Fe _ 2 O _ 3 c Magnetite iii CuCO _ 3 · Cu ( OH ) _ 2 d Malachite iv Fe _ 3 O _ 4

The point of intersection and sudden increase in the slope, in the diagram given below, respectively, indicates:

Which of the following reduction reaction CANNOT be carried out with coke?

The process that involves the removal of sulphur from the ores is :

Match List- I with List- II List- I List- II (a) Sodium Carbonate (i) Deacon (b) Titanium (ii) Castner-Kellner (c) Chlorine (iii) van-Arkel (d) Sodium hydroxide (iv) Solvay Choose

Match List- I with List- II . List- I List- II (a) Siderite (i) Cu (b) Calamine (ii) Ca (c) Malachite (iii) Fe (d) Cryolite (iv) Al (v) Zn Choose the correct answer from the

Match List- I with List- II . List- I (Ore) List- II (Element Present) (a) Kernite (p) Tin (b) Cassiterite (q) Boron (c) Calamine (r) Fluorine (d) Cryolite (s) Zinc Choose the

The method used for the purification of Indium is:

Ellingham diagram is a graphical representation of :

Match List - I with List - II. List-I (Metal) List-II (Ores) (a) Aluminium (i) Siderite (b) Iron (ii) Calamine (c) Copper (iii) Kaolinite (d) Zinc (iv) Malachite Choose the

Which of the following ore is concentrated using group 1 cyanide salt?

Which among the following statement(s) is (are) true for the extraction of aluminium from bauxite?

In metallurgy the term "gangue" is used for

The role of depressants in 'Froth Floation method' is to

Among statements (a) – (d), the correct ones are : (a) Lime stone is decomposed to CaO during the extraction of iron from its oxides. (b) In the extraction of silver, silver