Covalent Bonding (Concept of Electronegativity. Fajan’s Rule, Dipole Moment) NEET Questions

Physical Chemistry - Chemical Bonding and Molecular Structure

Covalent Bonding (Concept of Electronegativity. Fajan’s Rule, Dipole Moment) MCQ Questions


13.
A molecule with zero dipole moment is:
A.
HCl
B.
CHCl₃
C.
NH₃
D.
CO₂
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ANSWER :
D. CO₂
14.
Which compound has highest dipole moment?
A.
NH₃
B.
H₂O
C.
CO₂
D.
CH₄
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ANSWER :
B. H₂O
15.
The dipole moment of a molecule depends on:
A.
Bond length only
B.
Charge only
C.
Bond length and charge
D.
None
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ANSWER :
C. Bond length and charge
16.
Which of the following molecules has zero dipole moment?

NEET - 2022

A.
NH₃
B.
CO₂
C.
H₂O
D.
CH₃Cl
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ANSWER :
B. CO₂
17.
Fajan's rule is used to predict:
A.
Covalent character in ionic compounds
B.
Ionic character in covalent compounds
C.
Metallic character in molecules
D.
Hybridization type
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ANSWER :
A. Covalent character in ionic compounds
18.
Dipole moment is useful in predicting:

NEET - 2021

A.
Shape of molecules
B.
Boiling point of molecules
C.
Ionic character of bonds
D.
All of these
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ANSWER :
D. All of these