Concept explainers
(a)
Interpretation:
The terms molecular formula and structural formula are to be distinguished.
Concept Introduction:
Molecular formula of a compound indicates the total number of atoms present in the molecule.
Structural formula: The representation of each atom with their symbol in a bond-line structure of a compound is called as structural formula.
(b)
Interpretation:
The terms structural form land condensed structure are to be distinguished.
Concept Introduction:
Structural formula: The representation of each atom with their symbol in a bond-line structure of a compound is called as structural formula.
Condensed structural formula of a compound is the representation of atoms with its proportion in a molecule by using their chemical symbols.
(c)
Interpretation:
The terms lone pair and shared pair of electrons are to be distinguished.
Concept Introduction:
In a covalent molecule, electrons are shared between atoms and bounds are formed.
One bond is formed by using a pair of shared electrons.
Lone pair of electrons is the valence electrons of atoms in a molecule that are not participating in any bond formation.
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