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Chemistry

Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Chlorine
Sponge
Sulphur
Polythene

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Chemistry
Which is the purest form of iron?

Steel
Wrought iron
Pig iron
Cast iron

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Chemistry
The octane number of zero is assigned to

iso-octane
3-methyl octane
n-heptane
2-methyl octane

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Chemistry
A substance which readily forms colloidal solution in contact with water is called

Hydrophilic colloid
Hydrophobic colloid
Extrinsic colloid
Associated colloid

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Chemistry
Denatured spirit is ethanol mixed with

Pyridine
Water
Kerosene
Petrol

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Chemistry
If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by

Lead
Mercury
Iron
Arsenic

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MORE MCQ ON Chemistry

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