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CHEMISTRY

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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Chemistry
Which of the following is not a donor atom?

Aluminium
Arsenic
Phosphorus
Antimony

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Chemistry
What happens when a chemical bond is formed ?

Energy is neither released nor absorbed
More energy is released than is absorbed
Energy in always released
Energy is always absorbed

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Chemistry
Mark the compound which possess ionic, covalent and coordinate bonds.

SO3
NH4Cl
SO2
H2O

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Chemistry
In ice, the number of hydrogen bonds per water molecule is

1
8
2
4

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