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The pair of compounds that belongs to the same homologous series is

Chemistry
WAEC 2023

The pair of compounds that belongs to the same homologous series is

  • A. \(C_2H_6\) and \(C_4H_{10}\)
  • B. \(C_3H_8\) and \(C_3H_6\)
  • C. \(C_2H_4\) and \(C_4H_{10}\)
  • D. \(C_4H_{10}\) and \(C_5H_{10}\)
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Correct Answer: Option A
Explanation

In the given options, \(C_2H_6\) (ethane) and \(C_4H_{10}\) (butane) both belong to the same homologous series, as they have the same alkane functional group \(C_nH_{2n}+2\) and differ by a \(CH_2\) group:
\(C_2H_6\): Ethane
\(C_4H_{10}\): Butane
Both of these compounds are members of the alkane homologous series.


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