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Chemistry

Chemistry
Mercury is emitted into air by

Coal fire
Burning coal
Burning garbage
Steam engine

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Chemistry
Ozone consists of

Oxygen and Carbon
Oxygen and Nitrogen
Hydrogen and Carbon
Oxygen only

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Chemistry
The most volatile of the given liquids is

Ether
Liquid NH3
Liquid
Liquid He

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Chemistry
Cyanide poisoning causes death in seconds because

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

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Chemistry
Which one is the simplest aromatic hydrocarbon

Aspirin
Picric acid
Benzene
Chloride

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Chemistry
Litmus is obtained from

Lichen
A fungus
An alga
A bacterium

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MORE MCQ ON Chemistry

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