In 1-chloroprop-1-ene, CH3-CH=CH-Cl, the Cl atom and the CH3 group lie on the same side of the double bond. What is the CIP descriptor of this isomer?

NEET levelSingle correct optionDifficulty 1 of 3st002

In 1-chloroprop-1-ene, $CH X_{3} - CH = CH - Cl$ , the $Cl$ atom and the $CH X_{3}$ group lie on the same side of the double bond. What is the CIP descriptor of this isomer?

On the carbon bearing

Cl

the higher priority group is

Cl

(it outranks

H

); on the other carbon

CH X_{3}

outranks

H

. Both higher priority groups are on the same side, so the descriptor is

Z

R

and

S

describe stereocentres, not double bonds.