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Chemistry

Chemistry
Nucleons are regarded as composites sub-particles known as

Quarks
Photons
Mesons
Leptons

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Chemistry
Which among the following coal contains 90 per cent of carbon?

Bitumen
Anthracite
Peat
Lignite

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Chemistry
The Refrigerant 'FREON' is

Fluorspar and Felspar
Calcium Tetra Fluoride
Difluoro Dichloro Methane
Hydrofluosilicic Acid

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Chemistry
Vulcanized rubber contains sulphur

7-9%
10-15%
3-5%
0.02

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Chemistry
Aluminium chloride is

Bronsted Lowry Acid
Arrhenius Acid
Lewis Base
Lewis Acid

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Chemistry
Which one of the following has a maximum tendency to form M3 ion ?

Bi
N
As
P

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