M3: L-4

Question 1

What are constitutional isomers?

Answer 1

Isomers with a different order of attachment of their atoms

Question 2

What are stereoisomers?

Answer 2

Isomers with the same order of attachment of atoms, but a different orientation of their atoms in space

Question 3

What are enantiomers?

Answer 3

Stereoisomers that are non-super impossible mirror images of each other

Question 4

What are Diastereomers?

Answer 4

Stereoisomers that are not mirror images of each other

Question 5

Is the E stereoisomer cis or trans

Answer 5

Trans

Question 6

Is the Z stereoisomer cis or trans?

Answer 6

Cis

Question 7

What is the sequence rules of preferred atoms or groups to determine polarity (Z or E) of an atom?

Answer 7

• priorities assigned to groups based on atomic number
• where two atoms are the same, consider what is attached to each of them
• one atom or a higher atomic number takes precedence over several of a lower atomic number
• two atoms of a particular atomic number take precedence over one atom of the same atomic number
• double bonds are treated as two single bonds