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Chemistry

Chemistry
The process which does not evolve CO2 in air is

Burning
Breathing
Photosynthesis
Organic delay

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Chemistry
Pollutant from motor car exhaust that causes mental disease is

Hg
NO2
Lead
SO2

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Chemistry
The gas used for artificial ripening of green fruit is

acetylene
ethane
carbon dioxide
ethylene

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Chemistry
Which of the following substance is highly plastic ?

Clay
Granite
Mica
Quartz

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Chemistry
Aqueous solution of which of the following is a good conductor of electricity

Acetic acid
Glucose
Ammonia
Ammonium acetate

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

Antiseptic
Coagulant
Antibiotic
Disinfectant

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