organic chem; intro to organic chem

Question 1

General formula for alkanes

Answer 1

CnH2n+2

Question 2

General formula for alkenes

Answer 2

CnH2n

Question 3

General formula for alcohols

Answer 3

CnH2n+1OH

Question 4

Molecular formula

Answer 4

The actual no.of atoms in a molecule or element

Question 5

Empirical formula

Answer 5

The simplest whole number ratio of atoms in a compound

Question 6

Structural formula

Answer 6

The arrangement of atoms in a molecule without showing all the bonds

Question 7

Skeletal formula

Answer 7

Only the bonds of the carbon skeleton are shown. H & C atoms are not shown, only functional groups.

Question 8

Displayed formula

Answer 8

Show the arrangement of atoms showing all the bonds & atoms in the molecule

Question 9

Homologous series

Answer 9

A homologous series is a group of organic compounds have the same functional group but each successive member differed by CH2

Question 10

Prefix/Suffix for alkanes

Answer 10

-ane

Question 11

Prefix/Suffix for alkanes (branched)

Answer 11

Alkyl-

Question 12

Prefix/Suffix for alkenes

Answer 12

-ene

Question 13

Prefix/Suffix for alcohols

Answer 13

-ol

Question 14

Prefix/Suffix for aldehydes

Answer 14

-al

Question 15

Prefix/Suffix for ketones

Answer 15

-one

Question 16

Prefix/Suffix for carboxylic acids

Answer 16

-oic acid

Question 17

Prefix/Suffix for halogenoalkanes

Answer 17

Fluoro-
Chloro-
Bromo-
Iodo-

Question 18

Prefix/Suffix for cycloalkanes

Answer 18

Cyclo- & -ane

Question 19

How are molecules named?

Answer 19

IUPAC

Question 20

Mechanism

Answer 20

A chemical mechanism shows the movement of electrons during a chemical reaction

Question 21

Structural isomers

Answer 21

Structural isomers have the same molecular formula but a different structural formula

Question 22

Positional isomers

Answer 22

Same molecular formula but a different position of the functional group on the carbon skeleton

Question 23

Functional group isomers

Answer 23

Same molecular formula but a different functional group

Question 24

Stereoisomers

Answer 24

Have the same structural formula but a different arrangement of atoms in space

Question 25

Example of stereoisomers

Answer 25

E/Z isomerism

Question 26

Molecule E in E/Z isomerism

Answer 26

Opposite - same groups opposite the double bond

Question 27

Molecule Z in E/Z isomerism

Answer 27

Together - same groups on the same side of the double bond

Question 28

When is Cahn-Ingold-Prelog rules used?

Answer 28

Used to decide if an isomer is E or Z when there are 4 different groups around the double bond