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Selina Solutions Class 9 Chemistry Solutions for Exercise 4E in Chapter 4 - Chapter 4 Atomic Structure And Chemical Bonding
Question 1 Exercise 4E
Covalent bonds can be a single, double, or triple covalent bonds. How many electrons are shared in each?
Give an example of each type.
Answer:
A single covalent bond is formed by sharing one pair of electrons between atoms; each atom contributes one electron. Ex: Formation of Hydrogen molecules
A double bond is formed by sharing two pairs of electrons between two atoms. Ex: Formation of Oxygen molecule
A triple bond is formed by the sharing of three pairs of electrons between two atoms. Ex: Formation of N2 molecules
Video transcript
"hello everyone welcome to lido learning
i am gurpreet your science tutor
today's question is covalent bonds can
be
single double or triple covalent bond
how many electrons are sheared in each
give
an example of each type so here
we have to tell how many electrons are
shared between single double and triple
covalent bond and also with their
examples
so let us start this first single bond
in first single
covalent bond
how many electrons are sheared so the
electrons shared are
that is one pair
of electron it will be
shared between the atoms and each atom
will contribute
one electron okay
and the example will be h2 molecule
okay that is hydrogen molecule and
for the double
covalent bond
the electrons shared will be
two pairs
okay and the example will be
oxygen molecule that is o2
now for the triple covalent bond
for the triple covalent bond
the shared pair of electrons will be
three pairs
okay and the example will be
n2 that is nitrogen molecule
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and for any doubt drop a comment thank
you"
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