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JEE Questions for Chemistry Chemical Bonding And Molecular Structure Quiz 7 - MCQExams.com
JEE
Chemistry
Chemical Bonding And Molecular Structure
Quiz 7
The correct order of bond order value among the following isI. NO
-
II. NO
+
III. NOIV. NO
2+
V. NO
2-
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I < IV < III < II < V
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IV = II < I < V < III
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V < I < IV = III < II
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II < III < IV < I < V
In which of the following ionisation processes, the bond order has increased and the magnetic behaviour has changed?
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0%
0%
2)
0%
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The isoelectronic pair is
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0%
2)
0%
0%
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5
0%
4
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3
0%
2
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Antibonding π-molecular orbital
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Bonding π-molecular orbital
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σ-bonding molecular oribital
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σ-antibonding molecular orbital
The formation of energy bonds in solids are in accordance with
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Heisenberg's uncertainty principle
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Bohr's theory
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Ohm's law
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Rutherford's atomic model
The sequence that correctly describes the relative bond strength pertaining to oxygen molecule and its cation or anion is
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0%
2)
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0%
0%
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0%
2)
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Which one of the following species is diamagnetic in nature?
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0%
2)
0%
0%
Of the following sets which one does not contain isoelectronic species?
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0%
2)
0%
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The molecular electronic configuration of Be
2
is
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σ1s2 σ*1s2 σ2s2 σ*2p2
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KKσ2s2
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σ1s2 σ*1s2 σ2s2 σ*2s2
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None of these
In which of the following pairs the two species are not isostructural?
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0%
2)
0%
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The state of hybridisation of the central atom and the number of lone pairs over the central atom in POCl
3
are
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sp, 0
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sp2 , 0
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sp3 , 0
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dsp2 , 1
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sp, sp2 , sp3
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sp2 ,sp, sp3
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sp, sp3 , sp2
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sp2 , sp3 , sp
The sp
3
d
2
hybridisation of central atom of a molecule would lead to
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square planar geometry
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tetrahedral geometry
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trigonal bipyramidal geometry
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octahedral geometry
Hybridisation of C
2
and C
3
of
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sp, sp3
0%
sp2, sp
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sp2, sp2
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sp, sp
Number of non-bonding electron pair on Xe in XeF
6
, XeF
4
and XeF
2
respectively will be
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6, 4, 2
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1, 2, 3
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3, 2, 1
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0, 3, 2
In which reaction, the hybridisation on the central atom changes from sp
2
to sp
3
?
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0%
2)
0%
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The d-orbital involved in sp
3
d-hybridisation is
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0%
2)
0%
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How many σ and π-bonds are present in given compound?
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19 σ and 4 π-bonds
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22 σ and 4 π-bonds
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25 σ and 4 π-bonds
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26 σ and 4 π-bonds
Which one of the following conversions involve change in both hybridisation and shape?
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0%
2)
0%
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The AsF
5
molecule is trigonal bipyramidal. The hybrid orbitals used by the As atoms for bonding are
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0%
2)
0%
0%
The enolic form of acetone contains
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9 sigma bonds, 1 pi bond and 2 lone pairs
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8 sigma bonds, 2 pi bond and 2 lone pairs
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10 sigma bonds, 1 pi bond and 1 lone pair
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9 sigma bonds, 2 pi bond and 1 lone pair
A σ-bonded molecule MX
3
is T-shaped. The number non-bonding pairs of electron is
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0
0%
2
0%
1
0%
can be predicted only if atomic number of M is known
A covalent molecule AB
3
has pyramidal structure. The number of lone pair and bond pair of electrons in the molecule are respectively.
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2 and 2
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0 and 4
0%
3 and 1
0%
1 and 3
The shape of XeF
4
molecule and hybridisation of xenon in it are
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tetrahedral and sp3
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square planar and dsp2
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square planar and sp3 d2
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octahedral and sp3 d2
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octahedral and d2 sp3
Which one of the following linear structure?
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I, II and III
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I and V
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II, III and IV
0%
All of these
In XeF
6
, oxidation state and state of hybridisation of Xe and shape of the molecule are, respectively
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+ 6, sp3 d3, distorted octahedral
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+ 4, sp3 d2, square planar
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+ 6, sp3, pyramidal
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+ 6, sp3 d2, square pyramidal
The state of hybridisation of S in SF
4
is
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sp3 and has a lone pair of electron
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sp2 and has tetrahedral structure
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sp3d and has a trigonal bipyramidal structure
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sp3 d2 and has an octahedral structure
In which of the following pair both molecules do not possess same type of hybridisation ?
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0%
SF6 and XeF4
0%
BCl3 and NCl3
0%
CH4 and H2O
0%
PCl5 and SF4
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