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 refining Choose the most appropriate answer from the option given below:

a - ii , b - iii , c - iv , d - i

a - i , b - iv , c - ii , d - iii

a - ii , b - iii , c - i , d - iv

a - ii , b - iv , c - iii , d - i

Match the elements in Column I with methods of purification in Column II. Column-I Column-II (a) Boron (p) Van Arkel method (b) Tin (q) Mond's process (c) Zirconium (r) Liquation (d) Nickel (s) Zone refining

(a)-(s), (b)-(r), (c)-(p), (d)-(q)

(a)-(s), (b)-(r), (c)-(q), (d)-(p)

(a)-(q), (b)-(p), (c)-(s), (d)-(r)

(a)-(r), (b)-(s), (c)-(p), (d)-(q)

Match the refining methods (Column I) with metals (Column II). Column I Column II (Refining methods) (Metals) (I) Liquation (a) Z r (II) Zone Refining (b) N i (III) Mond Process (c) S n (IV) Van Arkel Method (d) G a

I - c ; I I - d ; I I I - b ; I V - a

( I ) - ( b ) ; ( I I ) - ( c ) ; ( I I I ) - ( d ) ; ( I V ) - ( a )

( I ) - ( b ) ; ( I I ) - ( d ) ; ( I I I ) - ( a ) ; ( I V ) - ( c )

I - ( c ) ; I I - a ; ( I I I ) - b ; I V - ( d )

HARD

Earn 100

How is zone refining process used to obtain ultra pure metals?

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

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Electrolytic refining is used to purify which of the following metals?

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Which one in the following statements is "not correct" about refining of ores?

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

The pair of metals refined by "vapour phase refining" is

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Which of the following refining process yields

99.9 %

pure zinc?

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

The refining method used when the metal and the impurities have low and high melting temperatures, respectively, is

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

The method used for the purification of Indium is:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Match the following:

	List-I		List-II
(A)	Zone refining	(I)	Indium
(B)	Poling	(II)	Titanium
(C)	Van-Arkel method	(III)	Nickel
(D)	Mond process	(IV)	Blister copper
		(V)	Zinc

The correct answer is:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Which of the following process is for purification of metals?

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Boron and silicon of very high purity can be obtained through :

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

The element that can be refined by distillation is :

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Explain zone refining.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

The Mond process is used for the:

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Write down the chemical reactions taking place in the extraction of zinc from zinc blende.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Semiconductor of very high purity are obtained by

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

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 refining

Choose the most appropriate answer from the option given below:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

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

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Match the elements in Column I with methods of purification in Column II.

	Column-I		Column-II
(a)	Boron	(p)	Van Arkel method
(b)	Tin	(q)	Mond's process
(c)	Zirconium	(r)	Liquation
(d)	Nickel	(s)	Zone refining

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

Match the refining methods (Column I) with metals (Column II).

	Column I	Column II
	(Refining methods)	(Metals)
(I)	Liquation	(a) $Z r$
(II)	Zone Refining	(b) $N i$
(III)	Mond Process	(c) $S n$
(IV)	Van Arkel Method	(d) $G a$

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining of Crude Metals

For the electro-refining of copper, what is the cathode made up of?

How is zone refining process used to obtain ultra pure metals?

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

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