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Chemistry

Chemistry
In an oxygen molecule, two atoms are united by

Two bonds
Three bonds
Four bonds
One bond

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Chemistry
The “King of Metals” is :

Silver
Aluminium
Iron
Gold

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Chemistry
By which organic compound all the oils are known ?

Ester
Hydrocarbon
Protein
Carbohydrate

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Chemistry
Sweat contains water and ________

Citric acid
Salt
Lactic acid
Vinegar

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Chemistry
In its reaction with silver nitrate, C2H2 shows

Reducing property
Basic property
Acidic property
Oxidising property

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Chemistry
Diamond is lustrous because

Its refractive index is high
It is hard
It is colourless
It is pure

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