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Chemistry

Chemistry
The heat value of combustion of Gasoline is

47000 kJ/kg
14600 kJ/kg
12600 kJ/kg
39400 kJ/kg

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Chemistry
The process of removing calcium and magnesium from hard water is known as

Flocculation
Sedimentation
Water softening
Filtration

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Chemistry
The nucleus of a hydrogen atom consists of

1 proton only
1 proton + 2 neutron
1 neutron only
1 electron only

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Chemistry
Which one of the following is a major green house gas?

Carbon monoxide
Chloro fluorocarbon
Freon
Carbon dioxide

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Chemistry
Which of the following is used to make light weight, but strong plastic ?

Nylon
Polythene
Polyvinyl Chloride
Methyl Methacrylate

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Chemistry
The most abundant constituent of atmospheric air is :

Carbon
Hydrogen
Oxygen
Nitrogen

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MORE MCQ ON Chemistry

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