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Chemistry

Chemistry
The nuclear particles which are assumed to hold the nucleons together are

electrons
neutrons
mesons
positrons

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Chemistry
The mass number of an atom is equal to

the number of protons
the number of neutrons
the number of nucleons
the number of protons and electrons

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Chemistry
Ultraviolet rays can be used in water treatment as

Disinfectant
Flocculator
Precipitator
Hydrolyser

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Chemistry
The alkaloid naturally found in coffee, cocoa and cola nut is

Cocaine
Tannin
Morphine
Caffeine

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Chemistry
Sea water can be purified by the process of

Distillation
Evaporation
Filtration
Fractional distillation

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Chemistry
The chemical name of 'Hypo' commonly used in photography is

Sodium thiosulphate
Sodium nitrate
Silver nitrate
Silver iodide

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MORE MCQ ON Chemistry

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