Chemistry - STEREO ISOMERISM Question with Solution | TestHub
Statement-I : Trans-isomers are more stable than cis-isomer.
Because
Statement-II : The cis-isomer is the one in which two similar groups are on the same side of double bond.
Options:
Answer:
Solution:
Question Explanation :
The question assesses understanding of the relative stability of cis and trans isomers (statement-I and statement-II).
Concept:
This question is based on geometrical isomerism (cis-trans isomerism), steric hindrance and stability of alkenes
Solution:
In alkenes, the trans‑isomer is generally more stable than the cis‑isomer because, in the trans form,
similar groups are on opposite sides of the double bond, minimizing steric repulsion and dipole
interactions. The cis‑isomer places similar groups on the same side, causing crowding and increased energy.
Both statements are true, but the second only defines the cis‑isomer—it doesn’t explain why the trans form is more stable.
Final Answer: Option (B)