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 )

Van Arkel method of refining is used for

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

Semiconductor of very high purity are obtained by

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

Which of the following refining process yields

99.9 %

pure zinc?

MEDIUM

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

CO

forms a volatile compound with

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

The element that can be refined by distillation is :

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

Which of the following process is for purification of metals?

MEDIUM

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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) $G a$

MEDIUM

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

The method used for the purification of Indium is:

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

Which element is obtained in the pure form by Van Arkel method?

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

Zone refining is used for the purification of

MEDIUM

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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

MEDIUM

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

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

EASY

Chemistry>Inorganic Chemistry>Making Use of Metals>Extraction of Aluminium

The Mond process is used for the:

Van Arkel method of refining is used for

Important Questions on Making Use of Metals

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