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JEE Exam  >  JEE Tests  >  Chemistry for JEE Main & Advanced  >  General Principles and Processes of Isolation of Metals - 2 - JEE MCQ

General Principles and Processes of Isolation of Metals - 2 - JEE MCQ


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30 Questions MCQ Test Chemistry for JEE Main & Advanced - General Principles and Processes of Isolation of Metals - 2

General Principles and Processes of Isolation of Metals - 2 for JEE 2024 is part of Chemistry for JEE Main & Advanced preparation. The General Principles and Processes of Isolation of Metals - 2 questions and answers have been prepared according to the JEE exam syllabus.The General Principles and Processes of Isolation of Metals - 2 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for General Principles and Processes of Isolation of Metals - 2 below.
Solutions of General Principles and Processes of Isolation of Metals - 2 questions in English are available as part of our Chemistry for JEE Main & Advanced for JEE & General Principles and Processes of Isolation of Metals - 2 solutions in Hindi for Chemistry for JEE Main & Advanced course. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free. Attempt General Principles and Processes of Isolation of Metals - 2 | 30 questions in 60 minutes | Mock test for JEE preparation | Free important questions MCQ to study Chemistry for JEE Main & Advanced for JEE Exam | Download free PDF with solutions
General Principles and Processes of Isolation of Metals - 2 - Question 1
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General Principles and Processes of Isolation of Metals - 2 - Question 3
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General Principles and Processes of Isolation of Metals - 2 - Question 5
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Assertion : For the extraction of iron, haematite ore is used.
Reason : Haematite is a carbonate ore fo iron.
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Extration of Fe is done from Haematite or this is true but reason is strong as Haematitte is Fe2O3.
∴  Ans. 4

General Principles and Processes of Isolation of Metals - 2 - Question 6
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Match column (I) with column (II) and select the correct answer using codes given below in the lists.
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Cyanide process → Ag; Self reduction → Pb; Electrolytic reduction → Al, Carbon reduction → Sn.

General Principles and Processes of Isolation of Metals - 2 - Question 7
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The chemical processes in the production of steel from haematite ore involve :
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General Principles and Processes of Isolation of Metals - 2 - Question 8
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General Principles and Processes of Isolation of Metals - 2 - Question 9
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Which does not represent correct method ?
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Calcination.

General Principles and Processes of Isolation of Metals - 2 - Question 10
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Match List-I with List-II and select the correct answer using the codes given below the lists.
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In the Bayer's process pure aluminium oxide is obtained from the bauxite ore. A low melting metal like tin can be refined by liquation method. Electrolysis is used in the refining of gold.

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General Principles and Processes of Isolation of Metals - 2 - Question 12
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General Principles and Processes of Isolation of Metals - 2 - Question 13
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Main function of frothers is:
General Principles and Processes of Isolation of Metals - 2 - Question 14
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(a) → van – Arkel method for Zr – Hg

→ Based on volatile nature of halides of methods.

General Principles and Processes of Isolation of Metals - 2 - Question 15
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With respect to an ore, Ellingham diagram helps to predict the feasibility of its -
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Thermal reduction

Reduction by (C) and (CO)

General Principles and Processes of Isolation of Metals - 2 - Question 16
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Among the following statements, the incorrect one is :
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(A) Calamine = ZnCO3 , Siderite = FeCO3

(B) Argentite = Ag2S and cuprite = Cu2O

(C) Zinc blende = ZnS, Pyrites = FeS2

(D) Malachite = CuCO3 Cu(OH)2 , Azurite = 2CuCO3 Cu(OH)2

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General Principles and Processes of Isolation of Metals - 2 - Question 18
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Main function of frothers is:
General Principles and Processes of Isolation of Metals - 2 - Question 19
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Which does not represent correct method ?
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Calcination.

General Principles and Processes of Isolation of Metals - 2 - Question 20
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The one that is not a carbonate ore is :
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Malachite = CuCO3. Cu(OH)2
Bauxite = Al2O3 . 2H2O or AlOx . (OH)3–2x (where D < x < 1)
Calamine = ZnCO3
Siderite = FeCO3
Ans is Bauxite option-2.

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General Principles and Processes of Isolation of Metals - 2 - Question 26
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NaCN is sometimes added in the froth flotation process as a depressant when ZnS and PbS minerals are expected because :
Detailed Solution for General Principles and Processes of Isolation of Metals - 2 - Question 26

ZnS + 4NaCN → Na2[Zn(CN)4] (soluble complex) + Na2S

General Principles and Processes of Isolation of Metals - 2 - Question 27
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The chemical composition of “slag“ formed during the smelting process in the extraction of copper is :
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FeO + SiO2 → FeSiO3

General Principles and Processes of Isolation of Metals - 2 - Question 28
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General Principles and Processes of Isolation of Metals - 2 - Question 29
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Which of the following statements is correct regarding the slag obtained during the extraction of a metal like copper or iron ?
General Principles and Processes of Isolation of Metals - 2 - Question 30
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When haematite ore is burnt in air with coke along with lime at 200°C, the process not only produces steel but also produces an important compound (A), which is useful in making building materials. The compound (A) is
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