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Chemistry

Chemistry
Ultra purification of a metal is done by :

Smelting
Zone melting
Leaching
Slugging

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Chemistry
Charcoal is used in water treatment as a/an

Absorbent
Coagulant
Adsorbent
Solvent

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Chemistry
The most pure form of Carbon among the options is

Wood Charcoal
Anthracite
Lampblack
Graphite

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Chemistry
The highest volume of gases in lower atmosphere is comprised of

Oxygen
Carbon dioxide
Hydrogen
Nitrogen

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Chemistry
The inherited traits of an organism are controlled by

enzymes
RNA molecules
nucleotides
DNA molecules

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Chemistry
Cyanide poisoning causes death in seconds because

It causes Lysis of red blood cells
It breaks the electron transport chain
It causes cardiac arrest
It denatures enzymes of the heart/muscle

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MORE MCQ ON Chemistry

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