Question
Which from following statements is NOT true about homologous series?
MHT CET
Chemistry
General Organic Chemistry
2026
MHT CET 2026 (17 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. Each member of a series has same functional group.
- B. Each member has same type of carbon skeleton.
- C. Each member differs by ethylene group from next member.
- D. All members of series possess similar chemical properties.
Answer
C. Each member differs by ethylene group from next member.
Step-by-step solution
A homologous series is a series of organic compounds with the same functional group, similar chemical properties, and the same general formula. Successive members of a homologous series differ from each other by a methylene group (-CH_2-) and a molecular mass of 14 u . The statement that each member differs by an ethylene group is incorrect, as they differ by a methylene group. Answer: Each member differs by ethylene group from next member.
Related: Chemistry — General Organic Chemistry · All PYQ Banks