Organic Chemistry and Isomerism

Question 0

What is the general formula for Alkanes?

Answer 0

CnH2n+2.

Question 1

What is the Homologous Series?

Answer 1

A series of compounds with similar structure in which each member differs from the next by a CH2 unit.

Question 2

All members of a homologous series have… (4)

Answer 2

Same general formula.
Same functional group.
Similar chemical properties.
A gradual change in physical properties.

Question 3

What is the general formula for Alcohols?

Answer 3

CnH2n+1OH.

Question 4

What is the general formula for Alkenes?

Answer 4

CnH2n.

Question 5

5 Carbon atoms =

Answer 5

Pent

Question 6

2 Carbon atoms =

Answer 6

Eth

Question 7

4 Carbon atoms =

Answer 7

But

Question 8

9 Carbon atoms =

Answer 8

Non

Question 9

10 Carbon atoms =

Answer 9

Dec

Question 10

1 Carbon atom =

Answer 10

Meth

Question 11

3 Carbon atoms =

Answer 11

Prop

Question 12

6 Carbon atoms =

Answer 12

Hex

Question 13

7 Carbon atoms =

Answer 13

Sept

Question 14

8 Carbon atoms =

Answer 14

Oct

Question 15

Name CH3CH2CH2Br.

Answer 15

1-bromopropane.

Question 16

Name CH3CH2CHClCH3.

Answer 16

2-chlorobutane.

Question 17

Name (CH3)2CHCH2CH3.

Answer 17

2-methylbutane.

Question 18

State what is meant by the term Structural Isomers.

Answer 18

Structural isomers are defined as having the same molecular formula but different structural formula.

Question 19

Name (CH3)3CCH2CH(CH3)2.

Answer 19

2,2,4-trimethylpentane.

Question 20

Explain why 2,2-dichloro-3-methylpentane is a structural isomer of 2,2-dichlorohexane.

Answer 20

They both have the same molecular formula, C6H12Cl2, but different structural formula.

Question 21

The three types of Structural Isomers are…

Answer 21

Chain
Positional
Functional

Question 22

Displayed formula shows..

Answer 22

The relative placing of atoms and the number of bonds between them.

Question 23

Skeletal formula is used to show..

Answer 23

A simplified organic formula by removing hydrogen atoms from alkyl chains, leaving just a carbon skeleton and associated functional groups.

Question 24

The general formula represents..

Answer 24

Any member of a homologous series.

Question 25

Give the IUPAC name of the position isomer of but-1-ene.

Answer 25

But-2-ene.

Question 26

Give the IUPAC name of the chain isomer of but-1-ene.

Answer 26

2-methylprop-1-ene.