Ionic Bonding (Formation of Ionic Bonds, Factors Affecting the Formation of Ionic Bonds; Calculation of Lattice Enthalpy ) NEET Questions

Physical Chemistry - Chemical Bonding and Molecular Structure

Ionic Bonding (Formation of Ionic Bonds, Factors Affecting the Formation of Ionic Bonds; Calculation of Lattice Enthalpy ) MCQ Questions


7.
Which pair forms a strong ionic bond?
A.
H and O
B.
Ca and F
C.
C and H
D.
S and O
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ANSWER :
B. Ca and F
8.
Lattice energy depends on:
A.
Size of ions
B.
Charge on ions
C.
Crystal structure
D.
All of these
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ANSWER :
D. All of these
9.
Which of the following factors favours the formation of an ionic bond?

NEET - 2022

A.
Low ionisation enthalpy of metal
B.
High electron gain enthalpy of non-metal
C.
High lattice enthalpy
D.
All of the above
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ANSWER :
D. All of the above
10.
Lattice energy is defined as

NEET - 2021

A.
Energy required to form one mole of ionic solid from gaseous ions
B.
Energy released when ionic solid breaks into ions
C.
Energy required to remove an electron
D.
None of the above
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ANSWER :
A. Energy required to form one mole of ionic solid from gaseous ions
11.
As the size of an ion increases, the lattice enthalpy:
A.
Increases
B.
Decreases
C.
Remains same
D.
Becomes zero
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ANSWER :
B. Decreases
12.
Which of the following has highest lattice enthalpy?
A.
NaCl
B.
MgO
C.
CaF₂
D.
AlF₃
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ANSWER :
B. MgO