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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 is a linear molecule?
[A]
ClO2
[B]
CO2
[C]
NO2
[D]
SO2
(2)
The outer orbitals of C in ethene molecule can be considered to be hybridized to give three equivalent sp² orbitals. The total number of sigma (s) and pi (p) bonds in ethene molecule is
[A]
1 sigma (s) and 2 pi (p) bonds
[B]
3 sigma (s) and 2 pi (p) bonds
[C]
4 sigma (s) and 1 pi (p) bonds
[D]
5 sigma (s) and 1 pi (p) bonds
Answer: 5 sigma (s) and 1 pi (p) bonds
(3)
The structure of IF7 is
[A]
Pentagonal bipyramid
[B]
Square pyramid
[C]
Trigonal bipyramid
[D]
Octahedral
Answer: Pentagonal bipyramid
(4)
The species having pyramidal shape is
[A]
SO3
[B]
BrF3
[C]
SiO32-
[D]
OSF2
(5)
The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing order of the polarizing power of the cationic species, K+, Ca++, Mg2+, Be2+?
[A]
Ca2+ < Mg2+ < Be+ < K+
[B]
Mg2+ < Be2+ < K+ < Ca2+
[C]
Be2+ < K+ < Ca2+ < Mg2+
[D]
K+ < Ca2+ < Mg2+ < Be2+
Answer: K+ < Ca2+ < Mg2+ < Be2+
(6)
Among the following mixtures, dipole-dipole as the major interaction, is present in
[A]
benzene and ethanol
[B]
acetonitrile and acetone
[C]
KCl and water
[D]
benzene and carbon tetrachloride
Answer: acetonitrile and acetone
(7)
Dipole-induced dipole interactions are present in which of the following pairs?
[A]
H2O and alcohol
[B]
Cl2 and CCl4
[C]
HCl and He atoms
[D]
SiF4 and He atoms
(8)
Based on lattice enthalpy and other considerations which one the following alkali metals chlorides is expected to have the higher melting point?
[A]
RbCl
[B]
KCl
[C]
NaCl
[D]
LiCl
(9)
The number of types of bonds between two carbon atoms in calcium carbide is
[A]
Two sigma, two pi
[B]
One sigma, two pi
[C]
One sigma, one pi
[D]
Two sigma, one pi
Answer: One sigma, two pi
(10)
The maximum number of hydrogen bonds that a molecule of water can have is
(11)
An atom of an element A has three electrons in its outermost orbit and that of B has six electrons in its outermost orbit. The formula of the compound between these two will be
[A]
A3B6
[B]
A2B3
[C]
A3B2
[D]
A2B
(12)
Which of the following types of hybridisation leads to three dimensional geometry of bonds around the carbon atom?
[A]
sp
[B]
sp²
[C]
sp³
[D]
None of these
(13)
The value of n in the molecular formula BenAl2Si6O18 is
(14)
Among the following mixtures, dipole-dipole as the major interaction, is present in
[A]
benzene and ethanol
[B]
acetonitrile and acetone
[C]
KCl and water
[D]
benzene and carbon tetrachloride
Answer: acetonitrile and acetone
(15)
Among the following the maximum covalent character is shown by the compound
[A]
MgCl2
[B]
FeCl2
[C]
SnCl2
[D]
AlCl3
(16)
Which of the following will have the lowest boiling point?
[A]
2-MethylButane
[B]
2-MethylPropane
[C]
2,2-Dimethylpropane
[D]
n-Pentane
(17)
Which one of the following does not have sp² hybridised carbon?
[A]
Acetone
[B]
Acetic acid
[C]
Acetonitrile
[D]
Acetamide
(18)
The hybrid state of sulphur in SO2 molecule is :
[A]
sp²
[B]
sp³
[C]
sp
[D]
sp³d
(19)
The number of nodal planes present in s × s antibonding orbitals is
(20)
The bond length between hybridised carbon atom and other carbon atom is minimum in
[A]
Propane
[B]
Butane
[C]
Propene
[D]
Propyne
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