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Chemistry

Chemistry
Brass is a solution of molten copper in

Solid zinc
Gaseous zinc
Molten tin
Molten zinc

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Chemistry
Which one of the following vegetable oils is used in the manufacture of paints?

Cottonseed oil
Sunflower oil
Palm oil
Linseed oil

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Chemistry
Which one of the following organic compound is used to remove stains of iron compounds?

Benzoic acid
Cinnamic acid
Phthalic acid
Oxalic acid

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Chemistry
It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of

CO
Unburnt petrol
SO2
CO2

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Chemistry
Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called

Aerosols
Mists
Smoke
Fumes

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Chemistry
Electric fuse is an alloy of

Copper and iron
Carbon and tin
Tin and lead
Zinc and lead

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