Unit 5: OChem characteristics

Question 1

3 main characteristics of hydrocarbons

Answer 1

1. Contain only C and H
2. High melting point
3. can be saturated, unsaturated, or aromatic

Question 2

Characteristics of alkanes

Answer 2

only single bonds
saturated

Question 3

Characteristics of alkenes

Answer 3

have at least one or more carbon double bond
unsaturated

Question 4

Characteristics of alkynes

Answer 4

have at least one or more carbon triple bond
unsaturated

Question 5

When is a hydrocarbon unsaturated

Answer 5

when there is a carbon double bond or carbon triple bond

Question 6

General formula for Alkene

Answer 6

CnH2n (remove 2H for every additional carbon double bond)

Question 7

General formula for alkyne

Answer 7

CnH2n-2 (remove 4H for every addition triple bond)

Question 8

What does an aromatic hydrocarbon look like?

Answer 8

Ring with double bonds (circle inside a hexagon)

Question 9

Rules for skeleton structure

Answer 9

every corner or end is a C WITH Hs completing the octet unless specified otherwise

Question 10

5 parts of IUPAC Nomenclature?

Answer 10

1. Stereisomerism
2. Substituents
3. Parent
4. Unsaturation
5. Functional Groups

Question 11

What is Stereoisomerism

Answer 11

Indicates whether bonds are cis or trans
Indicates existence of stereocenters

Question 12

What are substituents?

Answer 12

Groups not on the main branch

Question 13

What is the parent?

Answer 13

Main carbon group

Question 14

What is Unsaturation (IUPAC)

Answer 14

indicates existence of double or triple carbon bonds

Question 15

Functional groups

Answer 15

Group after which the compound is named (acid/ ol/ oate…etc)