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Chemistry

Chemistry
Natural rubber is the polymer of :

Ethylene
Isoprene
Styrene
Butadiene

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Chemistry
The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is

Carbanion
Free radical
Carbocation
Carbene

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Chemistry
The antiseptic compound present in dettol is

Iodine
Cresol
Enloroxylenol
Biothional

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Chemistry
The highest volume of gases in lower atmosphere is comprised of

Carbon dioxide
Nitrogen
Oxygen
Hydrogen

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Chemistry
Which of the following metals form an amalgam with other metals ?

Zinc
Lead
Tin
Mercury

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Chemistry
A polymeric substance used to make parachute is

Cotton
Viscose
Terylene
Rayon

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