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Chemistry

Chemistry
Which of the following is not a derivative of barbituric acid

Nembutal
Amytal
Equanil
Veronal

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Chemistry
For extinguishing fire, we use

Marsh gas
Carbon Dioxide
Carbon Monoxide
Hydrogen

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Chemistry
Yellow Cake' an item of smuggling across border is

Unreformed gold
A crude from of heroin
A crude from of cocaine
Uranium oxide

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Chemistry
Which of the following is used to remove rust stains on cloth?

Lime
Petrol
Oxalic acid solution
Kerosene

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Chemistry
Diamond is lustrous because

It is hard
Its refractive index is high
It is pure
It is colourless

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

Fumes
Smoke
Mists
Aerosols

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