Kossel - Lewis Approach to Chemical Bond Formation NEET Questions

Physical Chemistry - Chemical Bonding and Molecular Structure

Kossel - Lewis Approach to Chemical Bond Formation MCQ Questions


1.
Who among the following scientists succeeded independently in giving a satisfactory explanation of chemical bonding in 1916?
A.
Hund and Mulliken
B.
Heitler and London
C.
Kössel and Lewis
D.
Pauling and Slater
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ANSWER :
C. Kössel and Lewis
2.
According to Lewis, the outer shell of an atom can accommodate a maximum of how many electrons arranged at the corners of a cube?
A.
6
B.
18
C.
10
D.
8
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ANSWER :
D. 8
3.
The 'Kernel' of an atom according to Lewis consists of:
A.
Only valence electrons
B.
Nucleus and outer shell electrons
C.
Nucleus and inner electrons
D.
Only the nucleus
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ANSWER :
C. Nucleus and inner electrons
4.
The number of valence electrons in nitrogen represented by Lewis dot symbol is:
A.
4
B.
3
C.
7
D.
5
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ANSWER :
D. 5
5.
Which of the following is the correct stable electronic configuration of noble gases (except Helium)?
A.
ns¹ np⁵
B.
ns² np⁵
C.
ns² np⁶
D.
ns² np⁴
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ANSWER :
C. ns² np⁶
6.
In the formation of NaCl, sodium loses one electron to attain the configuration of:
A.
Argon
B.
Helium
C.
Neon
D.
Krypton
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ANSWER :
C. Neon