question_answer

But-2-ene could exist as:

A)  E and Z isomers

B)  R and S isomers

C)  geometrical isomers

D)  only one compound

Correct Answer: C

Solution :

                 A compound containing a double bond can show geometrical isomerism only when identical groups are not present on the double bonded    carbon    atom.    But-2-ene \[(C{{H}_{3}}CH=CHC{{H}_{3}})\]could exist as geometrical isomers.