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Chemistry

Chemistry
The mass of one Avogadro number of helium atom is

1.00 gram
4 x 6.02 x 1023 gram
4.00 gram
8.00 gram

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Chemistry
Which one of the following chemicals helps in fruit ripening?

Malathion
Atrazine
Ethephon
Isoproturan

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Chemistry
Brine refers to :

Pure water
Sweet water
Starch water
Salt water

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Chemistry
Helium is added to the oxygen supply of deep sea divers because it is

Lighter than nitrogen
Less soluble in blood than nitrogen at high pressure
Less poisonous than nitrogen
Readily miscible with oxygen

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Chemistry
Select the one which is not a mixture :

Distilled water
LPG
Gasoline
Air

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Chemistry
The working of a dry cell is based on

Electrolysis
Decomposition reaction
Combination reaction
Spontaneous oxidation-reduction reaction

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MORE MCQ ON Chemistry

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