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Organic Chemistry: Some Basic Principles and Techniques — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryOrganic Chemistry: Some Basic Principles and Techniques1 Mark
MCQ
In homlogous series, successive members differ by :
  • A
    $\ce{CH_3}​−$
  • B
    $\ce{CH_3 −CH_2​}−$
  • ✓
    $−\ce{CH_2} −$
  • D
    $−\ce{H}$
✓

Answer

Correct option: C.
$−\ce{CH_2} −$
A homologous series is a series of compounds in which each member differs from the next/previous by $−\ce{CH_2}​−$ or $14$ mass units.
Physical properties change in members of homologous series but chemical properties remain almost the same because the functional group remains the same.

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