Chemistry-

General

Easy

Question

Main function of roasting is

(a) To remove volatile substances
Oxidation
(c) Reduction
Slag formation

The correct answer is: (a) To remove volatile substances

To remove volatile substances.
$S subscript 8 end subscript plus 8 O subscript 2 end subscript rightwards arrow 8 S O subscript 2 end subscript upwards arrow$ ; $P subscript 4 end subscript plus 5 O subscript 2 end subscript rightwards arrow P subscript 4 end subscript O subscript 10 end subscript upwards arrow$
$4 A s plus 3 O subscript 2 end subscript rightwards arrow 2 A s subscript 2 end subscript O subscript 3 end subscript upwards arrow$

Important ore of Mg is

Important ore of Mg is
Chemistry-General

General
Chemistry-
The most important ore of tin is
The most important ore of tin is
Chemistry-General
General
Chemistry-
The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
Chemistry-General
General
Chemistry-
Indicate the mineral from which copper is manufactured
Indicate the mineral from which copper is manufactured
Chemistry-General
General
Chemistry-
The most abundant metal in the earth crust is
The most abundant metal in the earth crust is
Chemistry-General
General
Chemistry-
Important ore of zinc is
Important ore of zinc is
Chemistry-General
General
Chemistry-
Calamine is
Calamine is
Chemistry-General
General
Chemistry-
Which one of the following is an ore of silver
Which one of the following is an ore of silver
Chemistry-General
General
Chemistry-
Argentite is a mineral of
Argentite is a mineral of
Chemistry-General
General
Chemistry-
Which of the following ore is called malachite
Which of the following ore is called malachite
Chemistry-General
General
Chemistry-
Copper can be extracted from
Copper can be extracted from
Chemistry-General

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Main function of roasting is

(a) To remove volatile substances Oxidation (c) Reduction Slag formation

The correct answer is: (a) To remove volatile substances

To remove volatile substances. ;

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Important ore of Mg is

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The most abundant metal in the earth crust is

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Important ore of zinc is

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Calamine is

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Which one of the following is an ore of silver

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(a) To remove volatile substances
Oxidation
(c) Reduction
Slag formation

Important ore of Mg is
Chemistry-General