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Chemistry

Chemistry
Which one is the most reactive halogen

Bromine
Iodine
Fluorine
Chlorine

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Chemistry
One of the constituents of tear gas is

Chloropicrin
Ethane
Ethanol
Ether

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Chemistry
The most abundant element in the earth’s atmosphere is

Krypton
Oxygen
Argon
Nitrogen

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Chemistry
Cinnabar is an ore/mineral of

Mercury
Molybdenum
Lead
Manganese

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Chemistry
The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are

Silver Iodide
Sodium Chloride
All listed here
Dry ice or frozen carbon dioxide

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Chemistry
The function of skimming tank in sewage treatment is to remove

Inorganic substances
Gritty substances
Suspended solids
Oil and fatty substances

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MORE MCQ ON Chemistry

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