Homologous Series Flashcards Preview

Nat 5 Chemistry > Homologous Series > Flashcards

Flashcards in Homologous Series Deck (14)
Loading flashcards...
1

What is the general formula of an alkane?

Cn H2n+2

2

What is the general formula for an alkene?

Cn H2n

3

What is the general formula for a cycloalkane?

Cn H2n

4

What are the first eight prefixes of any homologous series?

Meth-
Eth-
Prop-
But-
Pent-
Hex-
Hept-
Oct-

5

How are alkanes, alkenes and cycloalkanes made?

The cracking of crude oil

6

How many hydrogen’s does pentane have?

12

7

What is the functional group of an alkene?

It has a double bond

8

What does the “2” of pent-2-ene mean

The double bond is at position 2

9

What is characteristic of a cycloalkane?

The carbon atoms are placed in a ring

10

What does it mean to say that a compound is saturated or unsaturated?

In saturated compounds, all the available bonds are occupied, however in unsaturated compounds there is a double bond

11

Which is more reactive, a saturated compound or an unsaturated compound?

An unsaturated compound

12

What happens when we add hydrogen to an alkene?

The double bond breaks and the compound becomes an alkane

13

How can we test if a compound is an alkene?

We can add it to bromine and the colour of the mixture will go from orange to colourless

14

What does the “3-methyl” of 3-methyl pentane mean?

The alkane has a methyl group on position 3