Organic Chemistry

Question 1

What is the molecular formula of methane?

Answer 1

CH4

Question 2

What is the molecular formula of ethane?

Answer 2

C2H6

Condensed structure: CH3CH3

Question 3

What is the molecular formula of propane ?

Answer 3

C3H8

Condensed structure:CH3CH2CH3

Question 4

Alkane

Answer 4

Suffix: -ane

Molecular formula:
c-c
CnH(2n+2)

Question 5

Alkene

Answer 5

Suffix: -ene

C=C
CnH(2n)

Question 6

Alkyne

Answer 6

Suffix: -yne

Triple CC bond
CnH(2n-2)

Question 7

Alcohol

Answer 7

C bonded to OH
R-OH

prefix: hydroxi-
Suffix: -ol

Example: Methanol

Question 8

Ethers

Answer 8

R-O-R
only one O

Prefix: - oxy-
Suffix: -ether

The shortest carbonchain will be considered to be a side chain with the suffix -oxy

Question 9

Amine

Answer 9

R-NH2
*got a N
*doesn’t got c=o

Prefix: Amino/ N-side atom -
Suffix:-amine

Question 10

Methane

Answer 10

1 carbon

Question 11

Ethane

Answer 11

2 carbons

Question 12

Propane

Answer 12

3 carbons

Question 13

Butane

Answer 13

4 carbons

Question 14

Pentane

Answer 14

5 carbons

Question 15

Hexane

Answer 15

6 carbons

Question 16

Heptane

Answer 16

7 carbons

Question 17

Octane

Answer 17

8 carbons

Question 18

Nonane

Answer 18

9 carbons

Question 19

Decane

Answer 19

10 carbons

Question 20

Undecane

Answer 20

11 carbons

Question 21

Dodecane

Answer 21

12 carbons

Question 22

Prefix

Answer 22

Indicates the location of the side chains found in the molecule

Question 23

Parent

Answer 23

Indicates how many carbons compose the molecular backbone ( longest carbon chain).

Question 24

Suffix

Answer 24

Identifies the family the molecule belongs to, based on the presence and type of functional groups

Question 25

Isomers

Answer 25

Molecules with the same molecular formula, but different molecule (different structure ). The may differ in physical or chemical properties

Question 26

Structural isomers

Answer 26

Share molecular formula, but differ in structure ( the order and configuration in which the atoms are bonded to one another).

Question 27

Stereoisomers

Answer 27

Share molecular structure, but the atomic arrangement differs in space - they cannot be converted into one another by rotation around a single band.

Question 28

Cis isomer

Answer 28

Type of stereoisomer.
The double bond between carbons is fixed in space ( no free rotation )
Same side group on the same side of the carbons.

Question 29

Trans isomer

Answer 29

Type of stereoisomer.
The double bond between carbons is fixed in space ( no free rotation )
Same side group on different side of the carbons.

Question 30

Nitrile

Answer 30

C-N

Suffix: - nitrile

Question 31

Benzene

Answer 31

Most common and best-known aromatic compound
Colorless
C6H6
Closed ring
Liquid at room temp.
Very stable!!!!!!
Hexane withe 3 double bonds- cyclohex-1,3,5-ene or cyclohex-2,4,6- ene

Question 32

Arene compounds

Answer 32

Referred as aryl when bonded to a larger molecule.
Contains at least one benzene ring
Aromatic

Question 33

Aliphatic

Answer 33

Describe all non-aromatic compounds

Question 34

Alkane

Answer 34

C-C Only

For linear: (n H20 + 2 Cs H21)

Question 35

Alkene

Answer 35

C=C

CH2: hint for C=C.

Question 36

Alkyne

Answer 36

Triple CC Bond

-H -C≡C -H

Question 37

Alcohol

Answer 37

R-OH

C bonded to OH

Question 38

Ethers

Answer 38

R-O-R

Symmetrical: R-O-R
Asymmetrical: R- - R’

Question 39

Amine

Answer 39

R-NH2

R - -NH2

Question 40

Carboxylic Acid

Answer 40

R-COOH/ R-CO2H

-C- -O- -C- -OH

Question 41

Esters

Answer 41

R-COOR’

Carbonyl bonded to R-COOR’

Question 42

Amide

Answer 42

R-CONH2 / R-CONR2

Carbonyl bonded to N atom