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Chemistry

Chemistry
One carat of diamond is equal to

150 mg
100 mg
250 mg
200 mg

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Chemistry
The heat required to raise the temperature of body by 1 K is called

water equivalent
specific heat
None of these
thermal capacity

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Chemistry
Which is the purest form of iron?

Wrought iron
Pig iron
Cast iron
Steel

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Chemistry
This group of alumino-silicate minerals is widely used in making electrical insulators

Manganese
Chromite
Bauxite
Mica

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Chemistry
Copper is refined by

Roasting
Electrolysis
Oxidation
Zone refining

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Chemistry
Iron is extracted from

Bauxite
Dolomite
Haematite
Cinnabar

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