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CHEMISTRY

Chemistry
The constituents of automobile exhaust that can cause cancer is/are :

Oxides of nitrogen
Carbon monoxide
Lead
Polycyclic hydrocarbons

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Chemistry
The acid rain destroys vegetations because it contains

Nitric acid
Ozone
Carbon monoxide
Sulphuric acid

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Chemistry
Of the following, which one pollutes the air of a big city ?

Copper
Cadmium
Lead
Chromium

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Chemistry
Which of the following is usually not an air-pollutant?

Carbon dioxide
Nitrous oxide
Hydrocarbons
Sulphur dioxide

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Chemistry
Which of the following pollutants is main product of automobile exhaust ?

CO2
CO
NO
Hydrocarbons

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