Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged extractive metallurgy
+3
votes
1
answer
In B2H6 :- (a)There is a direct boron-boron bond (b)The boron atoms are linked through hydrogen atoms
asked
Mar 31, 2019
in
Class 12
by
kratos
neet
extractive metallurgy
ores
jee
aiims
minerals
jee mains
p-block element
p - block element
+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
+2
votes
1
answer
Which of the following cannot be extracted by electrolysis from aqueous solution of their salts?
asked
Mar 12, 2019
in
Chemistry
by
kratos
electrochemistry
extractive metallurgy
ores
jee
minerals
jee mains
redox reactions
class-12
+1
vote
1
answer
The ore that contains both iron and copper is :
asked
Mar 9, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains 2019
jee mains
class-12
metallurgy
+1
vote
1
answer
The methods chiefly used for the extraction of Lead & Tin from their ores are respectively
asked
Mar 6, 2019
in
JEE
by
kratos
extractive metallurgy
biotic and non biotic resources
ores
jee
coordination
minerals
class-10
jee mains
class-12
p - block element
+2
votes
1
answer
In the thermite process ...... is used as a reducing agent.
asked
Mar 5, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+2
votes
1
answer
The major role of fluorspar (CaF2) which is added in small quantities in the electrolytic reduction
asked
Feb 20, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+3
votes
1
answer
Write the constituents of electrolyte for the extraction of aluminium.
asked
Feb 18, 2019
in
JEE
by
kratos
class-12
metallurgy
extractive metallurgy
class-10
jee mains
ores
icse
jee
minerals
+2
votes
1
answer
Dil. HCl oxidises metallic Fe to Fe^2+.
asked
Feb 16, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
hydrogen
minerals
jee mains
p - block element
+3
votes
1
answer
Match the following choosing one item from column X and the appropriate item from column Y
asked
Feb 10, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+1
vote
1
answer
The chemical process in the production of steel from haematite ore involve (a) reduction
asked
Feb 6, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+3
votes
1
answer
When the ore haematite is burnt in air with coke around 2000K alongwith lime,
asked
Feb 6, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+3
votes
1
answer
In the basic Bessemer process for the manufacture of steel, the lining of the converter is made up of ... . The slag formed consists of ......
asked
Feb 5, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+3
votes
1
answer
Answer the following questions briefly (i) What is the actual reducing agent of haematite in blast furnace?
asked
Jan 30, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+1
vote
1
answer
How is boron obtained from borax? Give chemical equations with reaction conditions.
asked
Jan 17, 2019
in
JEE
by
kratos
extractive metallurgy
properties of compounds
ores
jee
class-11
minerals
jee mains
p-block element
+2
votes
1
answer
How is petroleum formed in nature? Why is petroleum prospecting so difficult?
asked
Jan 17, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
class-10
minerals
jee mains
+3
votes
1
answer
Match the extraction processes listed in column I with metals listed in column II.
asked
Jan 2, 2019
in
JEE
by
kratos
extractive metallurgy
ores
jee
minerals
jee mains
+3
votes
1
answer
In the extraction of Cu, the metal is formed in the bessemer converter due to the reaction :
asked
Dec 31, 2018
in
JEE
by
kratos
principles and processes of isolation of elements
extractive metallurgy
processes of isolation of elements
ores
jee
minerals
class-12
jee mains
general principles
metallurgy
+2
votes
1
answer
Minerals of lead are : (A) Cerussite (B) Pyrolusite (C) Galena
asked
Dec 30, 2018
in
JEE
by
kratos
d-and f- block elements
extractive metallurgy
ores
jee
class-10
minerals
transition and inner transition elements
jee mains
class-12
metallurgy
+3
votes
1
answer
Where is lignite used? Name two state along with specific location where there are lignite reserves.
asked
Dec 21, 2018
in
JEE
by
kratos
extractive metallurgy
cbse
power resources
ores
jee
minerals
class-10
jee mains
To see more, click for the
full list of questions
or
popular tags
.