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Chemistry

Chemistry
Which one is the simplest aromatic hydrocarbon

Picric acid
Benzene
Aspirin
Chloride

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Chemistry
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :

Generator
Uninterrupted power supply (UPS)
Battery
Power transmittor

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Chemistry
Electric fuse is an alloy of

Copper and iron
Carbon and tin
Tin and lead
Zinc and lead

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Chemistry
'Atomic theory' of matter was given by

Pascal
Dalton
Avogadro
Newton

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Chemistry
Neoprene is prepared by polymerisation of which of the following

1,3-butadiene
2-methyl 1, 3-butadiene
2-chloro-1, 3-butadiene
Acrylonitrile

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HCI
HI
HBr
HF

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