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Explain electrolytic refining with an example
|
|
0
|
5151
|
October 20, 2016
|
|
Draw the diagram of Reverberatory furnace and label its parts
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|
0
|
2764
|
October 20, 2016
|
|
Draw the diagram of blast furnace and label its parts
|
|
0
|
10372
|
October 20, 2016
|
|
Explain the process involved in corrosion
|
|
0
|
759
|
October 20, 2016
|
|
What are the various techniques used in purification of the crude metal ? Explain
|
|
0
|
2998
|
October 20, 2016
|
|
How do you extract metals at the bottom of the activity series?
|
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0
|
2434
|
October 20, 2016
|
|
How do you extract metals in the middle of activity series?
|
|
0
|
4416
|
October 20, 2016
|
|
Describe the reaction of various metals in activity series with oxygen
|
|
0
|
595
|
October 20, 2016
|
|
Suggest an experiment to prove that the presence of air and water are essential for corrosion
|
|
1
|
24022
|
October 20, 2016
|
|
Where do we use handpicking and washing methods in our daily life?
|
|
1
|
4398
|
October 20, 2016
|
|
What is thermite process ? Mention its applications in daily life
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|
0
|
15098
|
October 20, 2016
|
|
What is activity series ? How it helps in extraction of metals?
|
|
0
|
2935
|
October 20, 2016
|
|
Which method do you suggest for extraction of high reactivity metals ? Why?
|
|
0
|
2260
|
October 20, 2016
|
|
Mention two methods which produce very pure metals from impure metals?
|
|
0
|
2608
|
October 20, 2016
|
|
Magnesium is an active metal, if it occurs as a chloride in nature, which method of reduction is suitable for its extraction?
|
|
0
|
2594
|
October 20, 2016
|
|
Draw a neat diagram of Reverberatory furnace and label it neatly
|
|
0
|
4882
|
October 20, 2016
|
|
Draw the diagram showing i) Froth floatation, ii) Magnetic separation
|
|
0
|
3448
|
October 20, 2016
|
|
What is gauge and slag?
|
|
0
|
3059
|
October 20, 2016
|
|
What is the difference between roasting and calcinations?
|
|
1
|
3533
|
October 20, 2016
|
|
Write short notes on each of the following :
|
|
1
|
2320
|
October 20, 2016
|
|
When do we use magnetic separation method for concentration of an ore ? Explain with an example
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|
0
|
6649
|
October 20, 2016
|
|
Write short notes on froth floatation process
|
|
0
|
14788
|
October 20, 2016
|
|
How do metals occur in nature ? Give examples to any two types of minerals
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|
0
|
5019
|
October 20, 2016
|
|
Write the names of any two ores of iron
|
|
0
|
3053
|
October 20, 2016
|
|
What is an ore ? On what basis a mineral is chosen as an ore?
|
|
0
|
2332
|
October 20, 2016
|
|
Write a note on dressing of ore in metallurgy
|
|
0
|
4943
|
October 20, 2016
|
|
List three metals that are found in nature in uncombined form
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|
0
|
4082
|
October 20, 2016
|
|
List three metals that are found in nature as Oxide ores
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|
0
|
3823
|
October 20, 2016
|