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Chemistry

Chemistry
The chief constituent of vinegar is

Oxalic acid
Salycylic acid
Formic acid
Acetic acid

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Chemistry
Iron filings can be separated from a heterogenous mixture using the technique of :

Evaporation
Sedimentation
Magnetization
Sublimation

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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
A pungent smell often present near the urinals is due to

Chlorine
Sulphur-di- oxide
Ammonia
Urea

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Chemistry
The most commonly used bleaching agent is

chlorine
alcohol
carbon dioxide
sodium chlorine

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Chemistry
Milk is a natural

Mixture
Suspension
Solution
Emulsion

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