Optical Isomeriam

Question 1

Race mixture

Answer 1

Equal mixture of optical ismoers

Question 2

Explain why such a mixture is formed in the reaction

Answer 2

Planor c=o

Question 3

Describe how separate samples of each of these enantiomers could be distinguished

Answer 3

-plane polarised light
-rotate in opposite directions

Question 4

Explain why the reaction produces a racemic mixture

Answer 4

-Planor carbonly group
-attack from either side
-with equal probability

Question 5

Justify why it does not show sterioisomerism

Answer 5

Does not contain Chiral carbon

Question 6

By considering the mechanism of the reaction, explain why the product has no effect on plane polarised light

Answer 6

-Nucleophlic attack
-planar carbonly group
-H ions attack from either side
-this exist in two chiral forms
-equal amounts of each enantomirer formed
-optical isomers rotate plane polarised light equally
- with racemic so effect cancels

Question 7

State the relation shop between two chiral molecules with the same structural formula

Answer 7

Mirror image