Final Answer:
(b) Step-1: Condensed structural formula
Condensed structural formula is those formula which show order of atoms like a structural formula but are written in single line to save space and make it more convenient and faster to write out. These are also helpful to show if a group of atoms is connected to a single atom in a compound.
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Chemical formula without presence of σ or π bonds is called condensed formula.
Given, condensed structural formula⇒CH3CHCH(CH2)3CH3
Step-2: Complete structural formula
The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space.
Complete structural formula of the given condensed structural formula shown below.
Final answer: