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Chemistry

Chemistry
Main source of lead pollution is from

Insecticides
Sewage
Leaded gasoline
Tobacco

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Chemistry
Atomic number is the number equal to

Neutrons
None of these
Protons
Electrons

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Chemistry
Which of the following alloy is used in making magnet ?

Stainless steel
Duralumin
Alnico
Magnalium

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Chemistry
The gas involved in Bhopal incident was

Methyl isocyanide
Hydrogen sulphide
Nitrogen dioxide
Methyl chloride

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Chemistry
The pH of lemon juice is expected to be

More than 7
Nothing can be predicted
Equal to 7
Less than 7

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Chemistry
The gas used for filling weather balloons is

Hydrogen
Air
Helium
Nitrogen

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