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Free download in PDF Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure Multiple Choice Questions and Answers for Board, JEE, NEET, AIIMS, JIPMER and other competitive exams. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Which of the following statements are not correct?
[A]
NaCl being an ionic compound is a good conductor of electricity in the solid-state.
[B]
In canonical structures, there is a difference in the arrangement of atoms.
[C]
Hybrid orbitals form stronger bonds than pure orbitals.
[D]
VSEPR Theory can explain the square planar geometry of XeF4.
(2)
Species having same bond order are :
[A]
N2
[B]
N2-
[C]
F2+
[D]
O2
(3)
Diamagnetic species are those which contain no unpaired electrons. Which among the following are diamagnetic?
[A]
N2
[B]
N22-
[C]
O2
[D]
O22-
(4)
Which of the following statements are correct about CO32-?
[A]
The hybridisation of the central atom is sp3.
[B]
Its resonance structure has one C–O single bond and two C=O double bonds.
[C]
The average formal charge on each oxygen atom is 0.67 units.
[D]
All C–O bond lengths are equal.
(5)
Which of the following species have the same shape?
[A]
CO2
[B]
CCl4
[C]
O3
[D]
NO2
(6)
CO is isoelectronic with
[A]
NO+
[B]
N2
[C]
SnCl2
[D]
NO2
(7)
Which of the following attain the linear structure:
[A]
BeCl2
[B]
NCO+
[C]
NO2
[D]
CS2
(8)
Which of the following have identical bond order?
[A]
CN–
[B]
NO+
[C]
O2–
[D]
O2
(9)
Amongst the following elements whose electronic configurations are given below, the one having the highest ionisation enthalpy is
[A]
[Ne]3s2 3p1
[B]
[Ne]3s2 3p3
[C]
[Ne]3s2 3p2
[D]
[Ar]3d10 4s2 4p3
(10)
The electronic configuration of the outer most shell of the most electronegative element is
[A]
2s2 2p5
[B]
3s2 3p5
[C]
4s2 4p5
[D]
5s2 5p
(11)
Which of the following options represents the correct bond order :
[A]
O2–> O2 > O2+
[B]
O2–< O2 < O2+
[C]
O2–> O2 < O2+
[D]
O2–< O2 > O2
(12)
Which of the following statement is not correct from the viewpoint of molecular orbital theory?
[A]
Be2 is not a stable molecule.
[B]
He2 is not stable but He2+ is expected to exist.
[C]
Bond strength of N2 is maximum amongst the homonuclear diatomic molecules belonging to the second period.
[D]
The order of energies of molecular orbitals in N2 molecule is σ2s < σ*2s < σ2pz< (π2px = π2py ) < (π*2px= π*2py) < σ*2pz
Answer: The order of energies of molecular orbitals in N2 molecule is σ2s < σ*2s < σ2pz< (π2px = π2py ) < (π*2px= π*2py) < σ*2pz
(13)
Which of the following order of energies of molecular orbitals of N2 is correct?
[A]
(π2py ) < (σ2pz) < (π*2px) ≈ (π*2py)
[B]
(π2py ) > (σ2pz) > (π*2px) ≈ (π*2py )
[C]
(π2py ) < (σ2pz) > (π*2px) ≈ (π*2py )
[D]
(π2py ) > (σ2pz) < (π*2px) ≈ (π*2py )
Answer: (π2py ) < (σ2pz) < (π*2px) ≈ (π*2py)
(14)
The bond between B and C will be
[A]
Ionic
[B]
Covalent
[C]
Hydrogen
[D]
Coordinate
(15)
The molecular formula of the compound formed from B and C will be
[A]
BC
[B]
B2C
[C]
BC2
[D]
BC3
(16)
The stable form of C may be represented by the formula :
[A]
C
[B]
C2
[C]
C3
[D]
C4
(17)
The stable form of A may be represented by the formula :
[A]
A
[B]
A2
[C]
A3
[D]
A4
(18)
Which of the following angle corresponds to sp2 hybridisation?
[A]
90°
[B]
120°
[C]
180°
[D]
109°
(19)
If the electronic configuration of an element is 1s2 2s2 2p6 3s2 3p6 3d2 4s2, the four electrons involved in chemical bond formation will be_____.
[A]
3p6
[B]
3p6, 4s2
[C]
3p6, 3d2
[D]
3d2, 4s2
(20)
In which of the following substances will hydrogen bond be strongest?
[A]
HCl
[B]
H2O
[C]
HI
[D]
H2S
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