Unit 4.1

Question 1

What is a homologous series?

Answer 1

A homologous series is a bunch of organic compounds with the same functional group and general formula.

Consecutive members of a homologous series differ by CH2.

Question 2

What is the general formula for an Alkane?

Answer 2

CnH2n+2

Question 3

What is an aromatic compound?

Answer 3

An aromatic compound contains a benzene ring

Question 4

What is an aliphatic compound?

Answer 4

An aliphatic compound is a compound where the carbon atoms are joined together in straight or branched chains.

Question 5

What is an alicyclic compound?

Answer 5

An alicyclic compound is a type of aliphatic compound where the carbon atoms are joined together in a ring structure. However it is not aromatic.

Question 6

What are alkanes?

Answer 6

They are saturated hydrocarbons, containing c-c single bonds.

Question 7

What are alkenes?

Answer 7

Alkenes are unsaturated hydrocarbons, they contain a c=c double bond

Question 8

What is the general formula for alkenes?

Answer 8

CnH2n

Question 9

What is an alkyl group?

Answer 9

It’s a fragment of a molecule with the general formula: CnH2n+1

Question 10

What is a structural isomer?

Answer 10

structural isomers ate connected in different ways. So although the molecular formula is the same, the structural formula is different.