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Recent questions tagged principles and processes of isolation of elements
+3
votes
1
answer
What is the cathode made up of ?
asked
Apr 1, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-8
class-10
atomic structure
icse
class-12
+1
vote
1
answer
In alumino-thermite process, aluminium is used as : (A) oxidising agent (B) flux (C) reducing agent
asked
Mar 28, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-10
icse
class-12
metallurgy
+1
vote
1
answer
Matte is (1) FeS (2) Cu2s (3) Cu2S + FeS (4) CuS + Fe2S2
asked
Mar 24, 2019
in
JEE
by
kratos
principles and processes of isolation of elements
jee
jee mains
class-12
metallurgy
+1
vote
1
answer
Why silica lines are used in Bessemer convertor in reduction of copper oxide ? Write chemical reaction of it and draw labelled diagram.
asked
Mar 15, 2019
in
JEE
by
kratos
principles and processes of isolation of elements
jee
jee mains
class-12
metallurgy
+1
vote
1
answer
For the extraction of Pb when impurity content is very high, then during roasting of galena,
asked
Mar 15, 2019
in
JEE
by
kratos
metals and nonmetals
principles and processes of isolation of elements
extractive metallurgy
ores
jee
minerals
class-10
jee mains
class-12
metallurgy
+3
votes
1
answer
Differentiate the Flux and Slag
asked
Mar 14, 2019
in
JEE
by
kratos
principles and processes of isolation of elements
processes of isolation of metals
jee
general principles
class-10
icse
jee mains
class-12
metallurgy
+2
votes
1
answer
Draw labelled diagram of electrolytic cell for extraction of aluminium and write complete reaction of it.
asked
Mar 13, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-12
+2
votes
1
answer
discuss the principle of extraction and purification of aluminium from one of its cheif ore
asked
Mar 7, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
cbse
processes of isolation of elements
methods of extraction
bseb model set
class-12
+2
votes
1
answer
The most abundant metal in the earth'* crust is (A) silver (B) aluminium (C) zinc (D) iron
asked
Mar 2, 2019
in
Class 12
by
kratos
metals and nonmetals
principles and processes of isolation of elements
cbse
class-8
class-10
metals and non-metals
class-12
+1
vote
1
answer
Which reaction does not occurs in the blast furnace in the metallurgy of Fe (a) CaO + SiO2 → CaSiO3
asked
Mar 2, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
neet
processes of isolation of elements
jee main 2020
aiims
jee
class-12
jee mains
general principles
metallurgy
+1
vote
1
answer
"Fool'* gold" is a common name for this mineral:
asked
Mar 1, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-12
general scince
+1
vote
1
answer
Which complex ions are used for electroplating of silver and gold?
asked
Feb 28, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-12
+2
votes
1
answer
How is silver extracted from its ore? Explain the process with relevant equations.
asked
Feb 28, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
cbse
processes of isolation of elements
class-10
icse
general principle
class-12
metallurgy
+3
votes
1
answer
Which reducing agent is used to extract copper from copper ore (scrap copper), which has very low amount of copper in it? Explain.
asked
Feb 23, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-12
+2
votes
1
answer
Self-reduction of CuS to Cu can be carried out in. (A) bessemer convertor (B) blast furnace (C) both (A) and (B)
asked
Feb 22, 2019
in
JEE
by
kratos
principles and processes of isolation of elements
processes of isolation of elements
jee
class-10
general principle
icse
jee mains
class-12
metallurgy
+2
votes
1
answer
A mineral is called an ore if
asked
Feb 20, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-12
+3
votes
1
answer
Calcium silicate (slag) formed in the slag formation zone in extraction of iron from haematite ore :
asked
Feb 15, 2019
in
JEE
by
kratos
principles and processes of isolation of elements
jee
class-10
icse
jee mains
class-12
metallurgy
+2
votes
1
answer
The formula of Haematite is
asked
Feb 14, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-12
+2
votes
1
answer
Which of the following metals form a protective layer of oxide to prevent corrosion ? (a) Cu (b) Ag (c) Au (d) AI
asked
Feb 13, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
d-and f- block elements
neet
chemical bonding
jee main 2020
class-11
aiims
jee
jee mains
coordinatian compounds
class-12
+1
vote
1
answer
The formula of copper pyrite is
asked
Feb 12, 2019
in
JEE
by
kratos
principles and processes of isolation of elements
class-12
jee mains
metallurgy
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