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Chemistry

Chemistry
Which is the highest quality of hard coal?

Bituminous
Peat
Lignite
Anthracite

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Chemistry
Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

O3
CO
All of these
CO2

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Chemistry
The antiseptic compound present in dettol is

Iodine
Enloroxylenol
Cresol
Biothional

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Chemistry
Cement is made hard with

Polymerisation
Dehydration
Hydration and dissociation of water
Dissociation of water

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Chemistry
The metal used to galvanise iron to protect it from rusting is

Lead
Antimony
Zinc
Chromium

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Chemistry
The alkaloid naturally found in coffee, cocoa and cola nut is

Tannin
Caffeine
Morphine
Cocaine

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MORE MCQ ON Chemistry

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