Chemistry - STRUCTURAL ISOMERISM Question with Solution | TestHub

at 2 Carbon



Rotation is clockwise, but lowest priority group is on horizontal line so configuration will be$\mathrm{S}$

at 3 Carbon


Rotation is anticlockwise and lowest priority group is on horizontal line so, configuration will be$\mathrm{R}$

∴ Configuration is$2\mathrm{S}, 3\mathrm{R}$.