Chemistry
online test series with fully solved practice questions (MCQ) helpful for
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Chemistry Test Series (MCQ Practice
Questions)
Chemical Bonding and Molecular Structure
Syllabus
Chemical combination; Kossel-Lewis
Approach to Chemical Bonding; Lattice Energy; Covalent Bond; Octet Rule; Ionic
and electrovalent Bond; Electrovalency; Covalency; Writing formula of an ionic
compound; Coordinate Bond; Metallic Bond; Bond parameters - bond length, bond
angle, bond enthalpy, bond order, resonance structures, polarity of bonds; The
Valence Shell Electron Pair Repulsion (VSEPR) Theory; Valence Bond Theory; Geometry
of molecules; Hybridisation; Molecular Orbital Theory; Bonding in some
Homonuclear Diatomic Molecules; Hydrogen Bonding
Chemistry Test Series:
Chemical Bonding and Molecular Structure
MCQ Test
Series – Set 1 (Q. No. 1-10)
Question 1: Tendency
of I-, Br-, Cl- and F- to be
oxidised is in order:
a. I- >
Br- > Cl- > F-
b. I- <
Br- < Cl- < F-
c. I- <
Cl- > F- > Br-
d. I-
= Br- > Cl- = F-
Question 2:
Some statements about valence bond theory are given below –
a. The
strength of bond depends upon extent of overlapping
b. The theory
explains the directional nature of covalent bond
c. According
to this theory oxygen molecule is paramagnetic in nature
(1) All are
correct (2) Only a and c (3) Only a and b are correct (4) All are wrong
Question 3:
Which has maximum covalent character?
a. NaCl
b. SiCl4
c. AlCl3
d. MgCl2
Question 4:
The number of unpaired electrons in a paramagnetic diatomic molecule of an
element with atomic number 16 is –
a. 2
b. 3
c. 4
d. 1
Question 5:
The correct order regarding the electronegativity of hybrid orbitals of carbon
is –
a. sp < sp2
< sp3
b. sp > sp2
< sp3
c. sp > sp2
> sp3
d. sp < sp2
> sp3
Question 6: The
electronegativity of O, F, N, Cl and H are 3.5, 4.0, 3.2, 3.0 and 2.1
respectively. The strongest bond will be:
a. F-O
b. O-Cl
c. N-H
d. O-H
Question 7:
When two atoms of chlorine combine to form one molecule of chlorine gas, the
energy of the molecule is –
a. Greater
than that of separate atoms
b. Equal to
that of separate atoms
c. Lower than
that of separate atoms
d. None of
these
Question 8:
Which of the following species is not correctly matched with its geometry
according to the VSEPR theory?
a. BrF6+
→ octahedral
b. SnCl5-
→ trigonal bipyramidal
c. ClF2-
→ linear
d. IF4+
→ T-shape
Question 9:
Variable valency is shown by:
a. s-block
elements
b. d-block
elements
c. p- and
d-block elements
d. all
elements
Question 10:
Covalent compounds are generally soluble in –
a. Polar solvents
b. Non-polar
solvents
c.
Concentrated acids
d. All
solvents
Chemical Bonding and Molecular Structure - More Objective Questions with Answers
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