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


1.
Covalent bonds are formed by:
A.
Transfer of electrons
B.
Sharing of electrons
C.
Ionization of atoms
D.
Removal of protons
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ANSWER :
B. Sharing of electrons
2.
Fajan’s Rule predicts increase in covalent character with:

NEET - 2019

A.
Large cation and small anion
B.
Small cation and large anion
C.
Small cation and small anion
D.
Large cation and large anion
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ANSWER :
B. Small cation and large anion
3.
The molecule H₂ is formed due to:
A.
Ionic bond
B.
Non-polar covalent bond
C.
Polar covalent bond
D.
Metallic bond
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ANSWER :
B. Non-polar covalent bond
4.
The bond in HCl is:
A.
Pure covalent bond
B.
Non-polar covalent bond
C.
Ionic bond
D.
Polar covalent bond
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ANSWER :
D. Polar covalent bond
5.
Which of the following is a polar molecule?
A.
Cl₂
B.
O₂
C.
CO₂
D.
HF
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ANSWER :
D. HF
6.
Electronegativity is defined as:
A.
Ability to lose electrons
B.
Ability to gain protons
C.
Tendency to attract bonding electrons
D.
Atomic radius
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ANSWER :
C. Tendency to attract bonding electrons