HARD
10th Nagaland Board
IMPORTANT
Earn 100
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Explain the Frasch process for the extraction of sulphur with the help of a labelled diagram.
Important Questions on Metals and Non-Metals
MEDIUM
10th Nagaland Board
IMPORTANT
"All ores are minerals, but all minerals are not ores". Justify.
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MEDIUM
10th Nagaland Board
IMPORTANT
Explain any three methods to prevent corrosion of metals.
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HARD
10th Nagaland Board
IMPORTANT
Explain the process of extraction of iron from Haematite with the help of a labelled diagram.
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MEDIUM
10th Nagaland Board
IMPORTANT
Write the chemical formula of cryolite? Why is it added to bauxite in the extraction of aluminium?
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HARD
10th Nagaland Board
IMPORTANT
Explain the Frasch process for the extraction of sulphur with the help of a labelled diagram.
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HARD
10th Nagaland Board
IMPORTANT
Explain the electrolytic reduction of Alumina by Hall’s process with the help of a labelled diagram.
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EASY
10th Nagaland Board
IMPORTANT
What are amphoteric oxides?
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HARD
10th Nagaland Board
IMPORTANT
Explain the steps involved in the extraction of metals from their ores.
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