Interpretation:
The shape of the molecule needs to be determined if there are three atoms in the molecules.
Concept introduction:
Shape of a molecule depends on the total number of electrons in the valence shell which includes both lone pair and bond pair electrons.
Answer to Problem 2E
Molecules with three atoms can be linear or angular.
Explanation of Solution
Let’s consider central atom is A which is bonded to other two B atoms. The possible arrangements of these two are shown below.
The molecule will have linear shape if there is no lone pair of electrons on central atom A but, if lone pair of electrons are present, the shape of the molecule will be angular. This is due to lone pair-bond pair repulsion.
Possible shapes of a molecule with three atoms will be linear and angular.
Chapter U2 Solutions
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