Chirality and enantiomers

Question 1

structural isomers are

Answer 1

compounds with the same molecular formula but different structural formulae

Question 2

functional group isomers are

Answer 2

compounds with different functional groups, such as aldehydes and ketones

Question 3

chain isomers are

Answer 3

compounds with the same molecular formula but different patterns of branching in their carbon chains

Question 4

stereoisomers are

Answer 4

compounds with the same structural formula but different ways in which their atoms or groups are arranged in three dimensions

Question 5

geometric isomers are

Answer 5

compounds with the same structural formula but their atoms or groups are attached at different positions on opposite sides of a C=C double bond

Question 6

chiral refers to

Answer 6

an atom in a molecule which allows it to exist as non-superimposable forms. it can also refer to the molecule itself

Question 7

asymmetric means

Answer 7

a carbon atom in a molecule that is joined to FOUR DIFFERENT atoms or groups

Question 8

enantiomers are

Answer 8

isomers that are related as object and mirror image

Question 9

optical isomers are

Answer 9

non-superimposable mirror images of each other but are otherwise the same, just like your hands

Question 10

drawing molecules using…..notation makes it easier to visualise the enantiomers

Answer 10

3D

• filled wedge x1
• solid line x2
• dotted line x1