Which of the following is the correct definition of a homologous series?
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A.
A series of compounds with the same molecular mass
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B.
A series of compounds having identical physical properties
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C.
A series of compounds having different functional groups
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D.
A series of compounds having the same functional group and similar chemical properties
Correct Answer:
D. A series of compounds having the same functional group and similar chemical properties
Explanation:
A homologous series refers to a sequence of organic compounds that share the same functional group and demonstrate comparable chemical behavior. Within this series, each member typically differs from the preceding one by a specific CH2 unit, while their physical properties change gradually as molecular mass increases.
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