Hydrocarbons U2

Question 1

What are the prefix for 1-8

Answer 1

1- meth
2- eth
3- prop
4-but
5-pent
6-hex
7-hept
8-oct

Question 2

What is the general formula for alkanes

Answer 2

CnH2n+2

Question 3

What is a homologous series

Answer 3

A family of molecules with the same general formula, with similar chemical properties and a gradual change in physical properties.

Question 4

What is the general formula for alkenes

Answer 4

CnH2n

Question 5

What is the difference between alkanes and alkenes

Answer 5

Alkenes are double bonded and alkanes are single bonded

Question 6

What is the general formula for cycloalkanes

Answer 6

CnH2n

Question 7

A hydrocarbon with no C=C is said to be what
(Alkanes and cycloalkanes)

Answer 7

Saturated

Question 8

A hydrocarbon with atleast one C=C is said to be
(Alkenes)

Answer 8

Unsaturated

Question 9

How do you test for saturation

Answer 9

Add bromine water to an alkene and it will decolourise rapidly

Question 10

What is isomers

Answer 10

Isomers are molecules which have the same molecular formula but have different structural formula

Question 11

What do alkenes react really quickly to

Answer 11

Hydrogen

Question 12

What does it mean when something is unsaturated

Answer 12

It decolourises rapidly

Question 13

What hydrocarbons are saturated

Answer 13

Alkanes and cycloalkanes

Question 14

What hydrocarbons are unsaturated

Answer 14

Alkenes

Question 15

what are cycloalkanes isomers

Answer 15

alkenes

Question 16

What name is given to the part of a molecule which gives the compound its characteristic properties

Answer 16

Functional group