Chemistry
What are the major pollutants of cigarette smoke?

Carbon monoxide and benzene
Dioxin and benzene
Carbon monoxide and nicotine
Carbon monoxide and dioxin

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Chemistry
Sullage water is –

Waste water released from kitchen
Waste water released from hospitals
Waste water released from factories
Waste water released from toilets

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Chemistry
Sodium vapour lamps glow with yellow colour. This is due to

The low ionisation energy of sodium
sublimation of sodium to emit yellow colour
Its ability to absorb all other colours except yellow
The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum

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