NEETChemistryGeneral Organic Chemistry
Identify the correct statements with respect to cis/trans-2butene from the following I. cis-2-Butene is more polar than trans - 2 Butene II. melting point of cis- 2- Butene is greater than that of trans- 2- Butene III. boiling point of cis- 2- Butene is greater than that of trans- 2-Butene Correct answer is
Options
- AI, II only
- BII, III only
- CI, III only
- DI, II, III
Correct answer
C. I, III only
Step-by-step solution
cis-2-Butene is more polar than trans-2-butene as the bond dipole moment gets cancelled out in trans-2butene. Thus, Statement I is correct. Due to polar nature, cis-2-butene boils at a higher temperature. Thus, III is correct. Due to symmetric structure, the melting point of trans-2butene is higher than that of cis-2-butene. Thus, II is incorrect.