Question

Which of the following has Z- configuration?
A.

B.

C.

D. All the above

Answer 1

Hint: The configurations like Z and E for unsaturated molecules are going to decide basing on the position of the bulkier groups on the both sides of the double bond. If bulkier groups are present on the same side of the double then the configuration of the molecule is Z and vice versa.

Complete step-by-step answer:- In the question it is asked to find the molecules form the given options having a configuration of Z.
- Coming to the given options, Option A.
- The molecule which is present in the given option A is as follows.

- Give the numbers to all the substituents according to their molecular weight.

- Means the bulkier groups are present on the same side of the double bond.
- Coming to the option C,

- Give the numbers to all the substituents according to their molecular weight.

- Means the bulkier groups are present on the same side of the double bond.
- Therefore all the given options are showing the z-configuration.

So, the correct option is D.

Note:If the bulkier groups are present on the opposite sides of the double bonds then the configuration of the molecule is E. To decide the configuration of the given molecule there should be a double bond in it.