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Chemistry

Chemistry
The most pure form of Carbon among the options is

Graphite
Lampblack
Anthracite
Wood Charcoal

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

Manganese
Bauxite
Mica
Chromite

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Chemistry
Bleaching powder is used in drinking water as a/an

Disinfectant
Antibiotic
Coagulant
Antiseptic

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Chemistry
Iron rusts quickly in

Rain water
River water
Sea water
Distilled water

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Chemistry
The graphite rods in the nuclear reactor

undergo combustion which triggers the nuclear fission
react with U to release energy
produce neutrons
convert fast moving neutrons into thermal neutrons

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Chemistry
Which one of the following forms of phosphorus is most reactive?

Violet phosphorus
Black phosphorus
Red phosphorus
White phosphorus

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