Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202611 April 2026Evening ShiftChemistryGeneral Organic ChemistryActual

What is the difference in terms of molar masses of second and fourth members of homologous series?

Options

  1. A12
  2. B24
  3. C28
  4. D36

Correct answer

C. 28

Step-by-step solution

Successive members of a homologous series differ by a -CH₂- group. The molar mass of a -CH₂- group is 12 + 2 1 = 14 g/mol . The difference between the second and fourth members of a homologous series corresponds to two -CH₂- groups. Difference in molar mass = 2 14 = 28 g/mol .

Practice General Organic Chemistry on Quantrex Academy →

More from General Organic Chemistry

Which of the following is an INCORRECT statement? 2026Identify the aromatic compounds among the given set based on Huckel's rule: 2026Among the given resonating structures of molecules negative mesomeric effect is represented by: 2026Identify the correct structure of o-ethyl anisole. 2026Match the mixtures listed in Column I with the correct method used for their separation. Column I Column II A. Glycerol from spent Lye P. Steam distillation B. Mixture of Benzoic a 2026Which one of the following is not the correct IUPAC name of the compound? 2026Lassaigne's test for the detection of nitrogen fails in 2026Consider the sets I, II and III. Identify the set(s) which is (are) correctly matched. I. Staggered ethane > eclipsed ethane ......... torsional strain. II. 2, 2-Dimethylbutane > 2 2025 Full General Organic Chemistry list All MHT CET PYQs