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Chemistry

Chemistry
Which of the following contains high content of lead?

Cooking gas
Coal
High octane fuel
Low octane fuel

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Chemistry
Element 106 was discovered by

Kurchatove
Lawrence
Seaborg
Rutherford

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Chemistry
The molecular mass of a gas is

Not related to its vapour pressure
Half its vapour pressure
Twice its vapour pressure
Equal to its vapour pressure

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Chemistry
The monomer of polythene is

ethyl alcohol
vinyl chloride
ethylene
None of these

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Chemistry
The element with highest ionization potential is

Boron
Oxygen
Helium
Carbon

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Chemistry
The manufacturing of iron from iron ore involves the process of

Oxidation
Electrolysis
Reduction
Fractional distillation

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