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Chemistry

Chemistry
Which of the following is not a nucleon?

Neutron
Electron
Positron
Proton

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Chemistry
Which of the following is the major constituent of LPG?

Propane
Methane
Butane
Ethane

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Chemistry
Molality of pure water is

18
55.5
5.55
1.8

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Chemistry
The metal ion present in Vitamin B12 is

Nickel
Iron
Cobalt
Zinc

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Chemistry
Removal of carbon particles from air involves the principle of

Electrophoresis
Filteration
Precipitation
Sedimentation

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Chemistry
Antacids are found in drugs that give relief to

Acne
Stomach ache
Eye sight
Headache

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