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Recent questions tagged processes of isolation of elements
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vote
1
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Write the principle of electrolytic refining.
asked
Apr 7, 2019
in
Class 12
by
kratos
class-12
cbse
methods of extraction
processes of isolation of elements
+2
votes
1
answer
Why is hydraulic washing a type of gravity separation?
asked
Apr 5, 2019
in
Class 12
by
kratos
class-12
general principles
processes of isolation of elements
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vote
1
answer
Write the principle of Vapour phase refining.
asked
Apr 4, 2019
in
JEE
by
kratos
cbse
processes of isolation of elements
jee
methods of extraction
jee mains
class-12
metallurgy
+3
votes
1
answer
On doping Ge metal with a little of In or Ga, we get
asked
Apr 3, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
class-11
upsee
solid state
class-10
general principle
class-12
periodic classification of elements
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votes
1
answer
Name the impurities ******* as anode mud during electrolytic refining of copper.
asked
Apr 3, 2019
in
JEE
by
kratos
processes of isolation of elements
processes of isolation of metals
jee
general principles
general principle
jee mains
class-12
metallurgy
+3
votes
1
answer
Halide ores present in the following : Bauxite, Calamine, Galena, Cryolite, Copper glance, Cinnabar.
asked
Apr 2, 2019
in
Class 12
by
kratos
metals and nonmetals
processes of isolation of elements
class-10
general principle
icse
bseb model set
class-12
+2
votes
1
answer
A mixture of X and Y was loaded in the column of silica. It was eluted by alcohol water mixture. Compound Y eluted in preference to compound X.
asked
Apr 2, 2019
in
JEE
by
kratos
jee advanced 2020
processes of isolation of elements
cbse
jee main 2020
class-11
methods of extraction
class-12
+1
vote
1
answer
The impurity present in the mineral is called
asked
Mar 31, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
aiims
some basic principles and techniques
bseb model set
class-12
metallurgy
+2
votes
1
answer
Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?
asked
Mar 31, 2019
in
Class 12
by
kratos
neet
class-12
general principle
processes of isolation of elements
+3
votes
1
answer
Name one chief ore each of copper and aluminium. Name the method used for concentration of these two ores.
asked
Mar 30, 2019
in
Class 12
by
kratos
class-12
general principle
metallurgy
processes of isolation of elements
+3
votes
1
answer
Why can"t aluminium be reduced by carbon ?
asked
Mar 30, 2019
in
Class 12
by
kratos
neet
cbse
processes of isolation of elements
general principle
class-12
+1
vote
1
answer
What will happen if aqueous solution of NaCl is subjected to electrolysis?
asked
Mar 30, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
general principles
aiims
class-12
+1
vote
1
answer
What should be the considerations during the extraction of metals by electrochemical method?
asked
Mar 30, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
cbse
aiims
methods of extraction
class-12
general principles
+3
votes
1
answer
What is leaching?
asked
Mar 30, 2019
in
Class 12
by
kratos
class-12
general principles
processes of isolation of elements
+2
votes
1
answer
Which of the following metallic oxides cannot be reduced by normal reducing agents ?
asked
Mar 28, 2019
in
Class 12
by
kratos
cbse
processes of isolation of elements
class-10
icse
class-12
metallurgy
+3
votes
1
answer
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
asked
Mar 27, 2019
in
Class 12
by
kratos
cbse
processes of isolation of elements
class-11
methods of extraction
class-12
+1
vote
1
answer
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
asked
Mar 27, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
aiims
jee mains 2019
general principle
class-12
general principles
+1
vote
1
answer
Describe the term Leaching.
asked
Mar 27, 2019
in
Class 12
by
kratos
class-12
general principles
processes of isolation of elements
+3
votes
1
answer
What is refining and how liquation process is used for refining of metals?
asked
Mar 26, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
jee
aiims
jee mains 2019
class-12
jee mains
general principles
metallurgy
+2
votes
1
answer
How are metals used as semiconductors refined? What is the principle of the method used?
asked
Mar 26, 2019
in
Class 12
by
kratos
cbse
processes of isolation of elements
methods of extraction
general principle
class-12
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