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Per NCERT §8.4.2, successive members of a HOMOLOGOUS SERIES differ from each other in molecular formula by which unit?
A-NH-
B-OH
C-CH₃
D-CH₂-
Answer & Solution
Correct answer: D. -CH₂-
NCERT §8.4.2: homologues share the same functional group and differ by -CH₂- in formula (e.g. CH₃OH, C₂H₅OH, C₃H₇OH).
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