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Chemistry

Chemistry
Which of the following gases is most toxic ?

Sulphur dioxide
Carbon monoxide
Carbon dioxide
Chlorine

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Chemistry
Coal is formed from

Crude oil
Compressed and hardened biomass
Coke
Deposit of animal waste

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Chemistry
Gobar gas mainly contains

Carbon dioxide
Carbon monoxide
Hydrogen sulphide
Methane

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Chemistry
In ice, the number of hydrogen bonds per water molecule is

2
4
1
8

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Aquatic macrophytes
Evapotranspiration
Auatic fungi
Effluents

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Chemistry
The first organic compound synthesised in the laboratory was

Lactic acid
Glucose
Urea
Uric acid

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MORE MCQ ON Chemistry

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