Chemistry - STEREO ISOMERISM Question with Solution | TestHub
Statement-I : All double bond containing compounds show geometrical isomerism.
Because
Statement-II : Alkenes have restricted rotation about the double bond.
Options:
Answer:
Solution:
Question Explanation :
The question evaluates whether every compound with a double bond exhibits geometrical isomerism and if that behavior is due to restricted rotation.
Concept:
Geometrical Isomerism, Restricted Rotation, Alkene Structure
Solution:
All alkenes have restricted rotation about the bond because of the -bond. However, not all double-bonded compounds show geometrical isomerism. For this isomerism to occur, each carbon of the double bond must have two different substituents. If identical groups are attached to one or both carbons, no cis-trans forms exist. Therefore, Statement-I is false, though Statement-II is true-the second statement correctly describes a general property of alkenes but doesn't make the first one true.
Final Answer: Option (D)