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Recent questions tagged general principles
+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
+3
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
+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
Statement : 1 Magnesium is mainly extracted by electrolysis of molten electrolyte and not by chemical methods.
asked
Mar 29, 2019
in
JEE
by
kratos
processes of isolation of metals
general principles
jee
jee mains
+2
votes
1
answer
Why we add cryolite or fluorspar in alumina during Hall’* Heroults process?
asked
Mar 29, 2019
in
Chemistry
by
kratos
cbse
surface chemistry
general principles
processes of isolation of metals
jee
class-10
icse
jee mains
class-12
metallurgy
+1
vote
1
answer
Consider the ΔG°f and ΔH°f (kJ/mol) for the following oxides. Which oxide can be most easily decomposed to
asked
Mar 28, 2019
in
Chemistry
by
kratos
jee main 2020
thermochemistry
class-11
upsee
processes of isolation of metals
jee
thermodynamics
jee mains
general principles
+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
What is pyrometallurgy ? Explain with one example.
asked
Mar 25, 2019
in
Class 12
by
kratos
processes of isolation of elements
cbse
general principles
general principle
class-12
+3
votes
1
answer
Zn is extracted from ZnS. The reducing agent used is _____ & method of refining is ______
asked
Mar 24, 2019
in
JEE
by
kratos
processes of isolation of metals
general principles
jee
jee mains
+3
votes
1
answer
Define Metallurgy. Mention the major steps of Metallurgy.
asked
Mar 24, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
general principles
aiims
class-12
+2
votes
1
answer
Vapour phase refining method is used for the purification of Ti.
asked
Mar 24, 2019
in
Class 12
by
kratos
cbse
processes of isolation of elements
methods of extraction
class-12
general principles
+1
vote
1
answer
Which of the following pairs of metals is purified by van Arkel method? (a) Zr and Ti (b) Ga and In (c) Ni and Fe (d) Ag and Au
asked
Mar 23, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
general principles
aiims
jee mains 2019
general principle
class-12
metallurgy
+3
votes
1
answer
If dialyzer is subjected to an electric field, what will happen?
asked
Mar 23, 2019
in
Physics
by
kratos
processes of isolation of elements
jee main 2021
jee main 2020
general principles
jee
jee main
jee mains
solid state physics
class-12
+2
votes
1
answer
"Metals are usually not found as nitrates in their ores." Out of the following two (I and II)
asked
Mar 20, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
general principles
general principle
class-12
+2
votes
1
answer
Match the refining methods (Column I) with metals (Column II). (I) Liquation (a) Zr
asked
Mar 17, 2019
in
Class 12
by
kratos
neet
processes of isolation of elements
cbse
aiims
jee
class-12
bseb model set
jee mains
general principles
+2
votes
1
answer
Which carbonate does not exists (a) Na2CO3 (b) CaCO3 (c) FeCO3 (d) CuCO3
asked
Mar 16, 2019
in
JEE
by
kratos
class-11
jee
general principles
processes of isolation of metals
class-10
jee mains
atoms and molecule
class-12
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