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Chemistry

Chemistry
Water gas is the combination of

CO and H2
CO2and H2
CO2 and CO
CO and H2O

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Chemistry
Coal is formed from

Compressed and hardened biomass
Crude oil
Coke
Deposit of animal waste

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Chemistry
The gas used to dilute oxygen for breathing by deep sea divers is:

Neon
Helium
Nitrogen
Argon

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Chemistry
Taj Mahal is greatly affected due to :

Acid rain
Deforestation
Sound pollution
Tourists

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Oxygen
Nitrogen
Hydrogen
Helium

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Chemistry
Hardest allotrope of carbon is

Coke
Graphite
Diamond
Lamp black

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MORE MCQ ON Chemistry

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