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Chemistry

Chemistry
Which one of the following metals pollutes the air of a city having large number of automobiles?

Lead
Cadmium
Chromium
Copper

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Chemistry
Aspirin is common name of

Acetyl Salicylic Acid
Methyl Salicylate
Salicylic Acid
Salicylate

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Chemistry
The chief constituent of vinegar is

Oxalic acid
Formic acid
Acetic acid
Salycylic acid

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Chemistry
Which among the following is a carbohydrate ?

Hydrogen peroxide
Nylon
Turpentine
Cane-sugar

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Chemistry
Threshold limit value of copper in the atmospheric air is

0.001 mg/m3
0.01 mg/m3
5.0 mg/m3
1.0 mg/m3

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Chemistry
Pyrethrin used in mosquito coil is obtained from

A bacterium
An insect
A fungus
A seed plant

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