COMEDK-UGET SERIES Chemistry
Chemical Bonding And Molecular Structure
18 previous year questions.
Volume: 18 Ques
Yield: Medium
High-Yield Trend
3
2024 3
2022 2
2021 1
2015 1
2011 2
2010 2
2009 2
2008 2
2007 Chapter Questions 18 MCQs
01
PYQ 2007
medium
chemistry ID: comedk-u
Oxygen molecule is
1
non-magnetic
2
diamagnetic
3
paramagnetic
4
ferromagnetic
02
PYQ 2007
medium
chemistry ID: comedk-u
hybridisation of the atomic orbitals gives
1
Square planar structure
2
Triangular structure
3
Tetrahedral structure
4
Octahedral structure
03
PYQ 2008
medium
chemistry ID: comedk-u
Helium molecule is monoatomic because
1
no electrons are present in both and orbitals
2
two electrons are present in both and orbitals
3
has no electrons and has 2 electrons
4
has 2 electrons and has no electrons
04
PYQ 2008
medium
chemistry ID: comedk-u
For molecule, molecular orbitals having lowest energy is
1
2
3
4
05
PYQ 2009
medium
chemistry ID: comedk-u
Tetrahedral structure is formed by
1
hybridization
2
hybridization
3
hybridization
4
hybridization
06
PYQ 2009
medium
chemistry ID: comedk-u
atomic orbital undergoes linear combination with
1
orbital
2
orbital
3
both and orbitals
4
orbital.
07
PYQ 2010
medium
chemistry ID: comedk-u
The type of hybridisation of nitrogen atom in is
1
2
3
4
08
PYQ 2010
medium
chemistry ID: comedk-u
Which of the following molecules exist?
1
2
3
4
09
PYQ 2011
medium
chemistry ID: comedk-u
Bond order in nitrogen molecule is
1
1
2
2
3
3
4
4
10
PYQ 2015
medium
chemistry ID: comedk-u
Pick the incorrect statement among those given below.
1
Multiple covalent bonds are shorter than single covalent bonds between same set of atoms.
2
Bond strength varies inversely with bond length
3
Bond order of isoelectronic species will be same
4
Bond enthalpy increases with increasing bond length.
11
PYQ 2021
medium
chemistry ID: comedk-u
Find the correct order of bond length among .
1
2
3
4
12
PYQ 2021
medium
chemistry ID: comedk-u
Find the compound which has both polar and non-polar covalent bonds:
1
HCN
2
H O
3
NH Cl
4
CH
13
PYQ 2022
medium
chemistry ID: comedk-u
Which of the following molecules does not exhibit dipole moment?
(i) CCl
(ii) CO
(iii) NH
(iv) CHCl
(v) H O
(vi) CH –O–CH
(i) CCl
(ii) CO
(iii) NH
(iv) CHCl
(v) H O
(vi) CH –O–CH
1
(ii), (v), (iv)
2
(i), (iii), (vi)
3
(i), (ii)
4
(iii), (iv), (vi)
14
PYQ 2022
medium
chemistry ID: comedk-u
Increasing order of bond order of oxygen and its ions is
1
2
3
4
15
PYQ 2022
medium
chemistry ID: comedk-u
O , F , Mg , Al , O , F . How many of the species given above are isoelectronic?
1
4
2
2
3
3
4
5
16
PYQ 2024
medium
chemistry ID: comedk-u
Which of the following two molecular species are Diamagnetic in nature?
1
2
3
4
17
PYQ 2024
medium
chemistry ID: comedk-u
Identify the pair of molecules in which one of them is a molecule with an odd electron and the other has an expanded octet.
1
BeCl₂ & HNO₃
2
NO & PF₅
3
BCl₃ & NO₂
4
SCl₂ & NH₃
18
PYQ 2024
medium
chemistry ID: comedk-u
Choose the incorrect statement from the following:
1
Isoletronic molecules/ions have the same bond order.
2
Dipole moment of is greater than that of .
3
The Carbon in Methyl Carbocation is hybridised.
4
The stability of an ionic compound is measured in terms of its lattice enthalpy and not simply based on attaining Octet configuration.