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Chemistry

Chemistry
When Hydrogen starts burning in air, it produces ?

Methane
Water
Carbonic Acid
Ammonia

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Chemistry
In deep-sea diving, divers use a mixture of gases consisting of oxygen and

Argon
Helium
Nitrogen
Hydrogen

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Chemistry
Percentage of lead in lead pencils is

40
80
31-66

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Chemistry
Which of the following partial miscible liquid pairs has both lower and upper critical solution temperature

Aniline and n-hexane
Water and diethyl aniline
Glycerine and m-toluene
Water and Phenol

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Chemistry
An emulsion is a colloidal solution of

Liquid in liquid
Solid in Solid
Solid in liquid
Gas in solid

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Chemistry
The most abundant metal in the Earth’s crust is

Zinc
Copper
Aluminium
Iron

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MORE MCQ ON Chemistry

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