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Chemistry

Chemistry
Air shows the property of

None of these
Both A and B
N2
O2

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

Carbocation
Free radical
Carbanion
Carbene

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Chemistry
Formic acid is produced by

Cockroaches
Mosquitoes
White ants
Red ants

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Chemistry
Atomic number of an atom gives the number of which of the following ?

Electrons
Protons
Neutrons
Neutrons and protons

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Chemistry
Aspirin is common name of

Acetyl Salicylic Acid
Salicylate
Methyl Salicylate
Salicylic Acid

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Chemistry
'All the four quantum numbers of two electrons in an atom are not the same.' It is the law of –

Exclusion Principle of Pauli
Hund's rule of maximum multiplicity
Avogadro's Law
Uncertainty Principle of Hiesenberg

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