Chemical Bonding-Covalent Bonding (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Chemistry): Questions 1 - 5 of 15

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Question number: 1

» Chemical Bonding » Covalent Bonding » Concept of Electronegativity

Appeared in Year: 2015

MCQ▾

Question

The order of electronegativity of carbon in sp,sp2&sp3 hybridised states follow

Choices

Choice (4) Response

a.

sp>sp3>sp2

b.

sp>sp2>sp3

c.

sp3>sp2>sp

d.

sp2>sp>sp3

Question number: 2

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

Appeared in Year: 2015

MCQ▾

Question

The H-C-H, H-N-H, and H-O-H bond angel and (in degrees) in methane, ammonia and water are respectively, closest to

Choices

Choice (4) Response

a.

109.5, 104.5, 107.1

b.

107.1, 104.5, 109.5

c.

104.5, 107.1, 109.5

d.

109.5, 107.1, 104.5

Question number: 3

» Chemical Bonding » Covalent Bonding » Valence Bond Theory

Appeared in Year: 2014

MCQ▾

Question

Two elements X and Y have atomic numbers 33 and 17 respectively the molecular formula of a stable compound formed between them is:

Choices

Choice (4) Response

a.

XY2

b.

XY3

c.

XY

d.

XY4

Question number: 4

» Chemical Bonding » Covalent Bonding » Back Bonding

Appeared in Year: 2015

MCQ▾

Question

The Lewis acid strength of BBR3,BCl3&BF3 is in the order-

Choices

Choice (4) Response

a.

BBr3<BF3<BCl3

b.

BCl3<BF3<BBr3

c.

BBr3<BCl3<BF3

d.

BF3<BCl3<BBr3

Question number: 5

» Chemical Bonding » Covalent Bonding » Dipole Moment

Appeared in Year: 2012

MCQ▾

Question

The Molecule with non Zero dipole moment is-

Choices

Choice (4) Response

a.

NCl3

b.

BeCl2

c.

BCl3

d.

CCl4

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