alleryWhy are the chemical properties of all members of a homologous series similar?
AThey have the same molecular mass
BThey are all gases
CThey have the same melting point
DThey share the same functional group
Answer & Solution
Correct answer: D. They share the same functional group
1. A homologous series is built around one functional group.
2. Members differ only by a -CH2- unit.
3. The functional group determines chemical behaviour.
4. Identical functional groups give identical chemical properties.
5. Physical properties such as melting point change with chain length.
_Source: syllabus Science Ch 4 'Carbon and its Compounds' (byjus.com extract)_
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