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Exam Details

2022 Chemistry

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Questions 120
Duration 180 mins
Package Combined Medical Services Examination - Previous Year Papers

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Difficulty distribution

Easy 40 33.3%
Medium 40 33.3%
Hard 40 33.3%

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Multiple Choices 120 100%

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Sample questions from this paper

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1
2022 · Unclassified
2022 Chemistry
The numbers of radial nodes, planar angular nodes and non-planar angular nodes in 3d_{z²}, 3s and 3pₓ orbitals are
A
(0, 0, 2), (2, 0, 0), (1, 1, 0) respectively
B
(0, 2, 0), (2, 0, 0), (1, 1, 0) respectively
C
(2, 0, 0), (2, 0, 0), (0, 1, 1) respectively
D
(0, 2, 0), (0, 2, 0), (1, 1, 0) respectively
2
2022 · Unclassified
2022 Chemistry
The angular wave function for hydrogen atom depends upon the quantum number(s)
A
n and l only
B
l and m_l only
C
m_l only
D
l, m_l and n
3
2022 · Unclassified
2022 Chemistry
The total number of nodal planes possible for all the atomic orbitals with a value of principal quantum (n) = 3 is
A
8
B
9
C
11
D
14
4
2022 · Unclassified
2022 Chemistry
The covalent radius of C atom is 0.77 Å and that of H atom is 0.37 Å. What is the internuclear distance between C and H atoms in CH₄ molecule?
A
1.14 Å
B
1.20 Å
C
1.25 Å
D
1.41 Å
5
2022 · Unclassified
2022 Chemistry
The bond distance in Cl₂ molecule is 1.98 Å. What will be its covalent radius?
A
0.99 Å
B
1.00 Å
C
0.98 Å
D
1.10 Å
6
2022 · Unclassified
2022 Chemistry
Which one of the following represents the correct order of size among O^{2-}, F^{-}, Na^{+} and Mg^{2+} isoelectronic ions?
A
O^{2-} < F^{-} < Na^{+} < Mg^{2+}
B
Mg^{2+} < Na^{+} < F^{-} < O^{2-}
C
Mg^{2+} < Na^{+} < O^{2-} < F^{-}
D
O^{2-} < F^{-} < Mg^{2+} < Na^{+}