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Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)

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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-1>Q 47
High purity copper metal is obtained by ________.
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-1>Q 48
In the electrolytic refining of lead, Sb, Cu, Ag and Au are found:
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-1>Q 50
Silver can be separated from lead by:
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-1>Q 51
The method of zone refining of metals is based on the principle of
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-1>Q 59
The hottest part of the flame of a Bunsen burner is the:
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 2

Match Column-I with Column-II and select the correct answer using the codes given below:

  Column-I (Metals)   Column-II (Ores)
(A) Tin (p) Calamine
(B) Zinc (q) Cassiterite
(C) Iron (r) Cerrusite
(D) Lead (s) Siderite
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 7
The metal which mainly occurs as oxide ore in nature is :
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Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-2>Q 9

Choose the correct option using the code regarding the roasting process:

I It is the process of heating the ore in the air in a reverberatory furnace to obtain the oxide.

II It is an exothermic process.

III It is used for the concentration of sulphide ore.

IV It removes easily oxidisable volatile impurities present in the concentrated ore.