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Chemistry

Chemistry
Which one out of the following helps in burning ?

Carbon monoxide
Oxygen
Carbon dioxide
Nitrogen

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Chemistry
Isobars are lines joining places having equal

Pressure
Height above sea-level
Population
Rainfall

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Chemistry
The resources which can be used continuously, year-after -year are called

Biotic
Renewable
Non-renewable
Abiotic

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Chemistry
Which one element from below list is liquid at room temperature

Argon
Bromine
Lead
Zinc

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Chemistry
KMnO4 can be used as

Fertilizer
Pesticide
Insecticide
Disinfectant

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Chemistry
The manufacturing of iron from iron ore involves the process of

Fractional distillation
Electrolysis
Reduction
Oxidation

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