AIIMS (All India Institute of Medical Sciences) Chemistry: Questions 80 - 87 of 123

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Question number: 80

» Chemical Bonding » Molecular Orbital Theory » Important Features

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Question

Shape of is very similar to

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 81

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

Calculate the mass in gm of atom of

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 82

» Chemical Bonding » Molecular Orbital Theory » Bond Order

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Question

Which of the following does not exist on the basis of molecular orbital theory?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 83

» States of Matter » Solid State » Unit Cell and Lattices

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Question

The three dimensional graph of lattice points which sets the pattern for the whole lattice is called

Choices

Choice (4)Response

a.

Space lattice

b.

Simple lattice

c.

Unit cell

d.

Crystal lattice

Question number: 84

» Chemical Bonding » Covalent Bonding » Electron Pair Repulsion (VSEPR) Theory

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Question

Which of the following statement is incorrect?

Choices

Choice (4)Response

a.

and are isoelectronic

b.

The bonding orbitals in a trigonal bipyramidal molecule are described as hybrid

c.

Non-bonding pairs occupy more space than bonding pairs

d.

has linear shape

Question number: 85

» Chemical Bonding » Molecular Orbital Theory » Bond Order

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Question

Which of the following has maximum bond strength?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 86

» States of Matter » Solid State » Covalent and Metallic Solids

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Question

Which one of the following metal oxides is antiferromagnetic in nature?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 87

» Chemical Bonding » Covalent Bonding » Valence Bond Theory

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Question

Which is not true according to VBT?

Choices

Choice (4)Response

a.

Overlapping takes place only in the direction of maximum electron density of the orbital

b.

The greater the extent of overlapping the stronger is the bond

c.

A covalent bond is formed by the overlapping of orbitals with unpaired electrons of opposite spins.

d.

A covalent bond is formed by the overlapping of orbitals with unpaired electrons of same spin

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