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Chemistry

Chemistry
Which one is not a pure form of carbon

Graphite
Coal
Gold
Diamond

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Chemistry
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

5 gram of molecule
1 gram of molecule
0.5 gram of molecule
10 gram of molecule

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Chemistry
Brine refers to :

Sweet water
Pure water
Starch water
Salt water

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Chemistry
The charcoal used to decolourise brown sugar solution is

Coconut charcoal
Wood charcoal
Animal charcoal
Sugar charcoal

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Chemistry
Interveinal necrotic spots on leaves appear due to

HF injury
NO2injury
SO2injury
O3injury

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Chemistry
The most pure form of Carbon among the options is

Anthracite
Wood Charcoal
Lampblack
Graphite

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