Last Updated On [03-11-2023]
Match the terms used in metallurgy with their meanings.
Column I
Column II
A.
Roasting
(i)
Heating the ore just below its melting point in the absence of air
B.
Calcination
(ii)
Unwanted impurities present in the ore
C.
Gangue
(iii)
Heating the ore just below its melting point in the presence of air
D.
Flux
(iv)
Process of increasing of the percentage of desired component of the ore
E.
(v)
Substance added to ores to remove unwanted impurities
(a)
A-i; B-iii; C-ii; D-v
(b)
A-iii ; B-I; C-iv; D-ii
(c)
A-iii; B-I; C-ii; D-v
(d)
A-I; B-iii; C-v; D-ii
Match the terms used in metallurgy with their meanings.
|
Column I |
Column II |
||
|
A. |
Roasting |
(i) |
Heating the ore just below its melting point in the absence of air |
|
B. |
Calcination |
(ii) |
Unwanted impurities present in the ore |
|
C. |
Gangue |
(iii) |
Heating the ore just below its melting point in the presence of air |
|
D. |
Flux |
(iv) |
Process of increasing of the percentage of desired component of the ore |
|
E. |
|
(v) |
Substance added to ores to remove unwanted impurities |
(a)
A-i; B-iii; C-ii; D-v
(b)
A-iii ; B-I; C-iv; D-ii
(c)
A-iii; B-I; C-ii; D-v
(d)
A-I; B-iii; C-v; D-ii
Question ID - 154881 :-
Match the terms used in metallurgy with their meanings.
Column I
Column II
A.
Roasting
(i)
Heating the ore just below its melting point in the absence of air
B.
Calcination
(ii)
Unwanted impurities present in the ore
C.
Gangue
(iii)
Heating the ore just below its melting point in the presence of air
D.
Flux
(iv)
Process of increasing of the percentage of desired component of the ore
E.
(v)
Substance added to ores to remove unwanted impurities
(a)
A-i; B-iii; C-ii; D-v
(b)
A-iii ; B-I; C-iv; D-ii
(c)
A-iii; B-I; C-ii; D-v
(d)
A-I; B-iii; C-v; D-ii
|
Match the terms used in metallurgy with their meanings.
|
|||||||||||||||||||||||||||
|
(a) |
A-i; B-iii; C-ii; D-v |
(b) |
A-iii ; B-I; C-iv; D-ii |
||||||||||||||||||||||||
|
(c) |
A-iii; B-I; C-ii; D-v |
(d) |
A-I; B-iii; C-v; D-ii |
||||||||||||||||||||||||
Next Question :
|
The bond in compound formed from combination of 14 group and 17 group elements of periodic table will be |
|||
|
(a) |
electrovalent bond |
(b) |
coordinate bond |
|
(c) |
van der Waals bond |
(d) |
Covalent bond |
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