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Chemistry

Chemistry
Vulcanization of rubber is carried out by adding

Ozone
Phosphorus
Sulphur
Carbon

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

Copper
Aluminium
Zinc
Iron

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Chemistry
Many people died in London in 1952 as result of air pollution producing

Smog
Mist
Fog
Sleet

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Chemistry
The substance most commonly used as a food preservative is

Acetic acid
Sodium salt of benzoic acid
Tartaric acid
Sodium carbonate

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Chemistry
A non-electronic conductor is

None of these
Copper Sulphate
Iron
Gas Carbon

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Chemistry
Find the odd one:

Chalk
Marble
Limestone
Slaked lime

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MORE MCQ ON Chemistry

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