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Chemistry

Chemistry
Which one of the following is not coal variety?

Lignite
Dolomite
Peat
Bituminous

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Chemistry
The chemical used for cloud seeding for artificial rains is

Potassium Nitrate
Silver Iodide
Potassium Bromide
Silver Nitrate

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Chemistry
A non-electronic conductor is

Gas Carbon
Iron
None of these
Copper Sulphate

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Chemistry
Biofertilizers convert nitrogen to ________ .

Nitrates
Amino acids
Nitrogenase
Ammonia

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Chemistry
The fiber least prone to catch fire is

Polyester
Cotton
Nylon
Terylene

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Chemistry
Cooking gas is a mixture of

Butane and propane
Methane and ethylene
Carbon monoxide and carbon dioxide
Carbon dioxide and oxygen

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