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CHEMISTRY

Chemistry
Concentration of a material which is lethal to 50% animal is called

LD50
LC50
NOAEL
ADI

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Chemistry
The major harmful gas emitted by automobile vehicle which causes air pollution is

Ozone gas
Carbon Monoxide
Methane
Carbon dioxide

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Chemistry
The major harmful gas emitted by automobile vehicles which causes air pollution is

Carbon dioxide
Ozone gas
Carbon Monoxide
Methane

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Chemistry
Normal rainwater is slightly acidic due to the presence of

Sulphur dioxide
Methane
Carbon dioxide
None of these

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Chemistry
Global warming is mainly due to accumulation of

Oxides of nitrogen
Carbon dioxide
Oxides of sulphur
Carbon monoxide

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