Topic 6 - Organic Chemistry I

Question 1

6A - What is a hydrocarbon?

Answer 1

A compound made of hydrogen and carbon only

Question 2

6A - What is empirical formula

(Give the empirical formula of hexene as an example)

Answer 2

The simplest whole number ratio of atoms in a molecule

C₆H₁₂ → CH₂

Question 3

6A - What is molecular formula

(Give the molecular forumla of hexane as an example)

Answer 3

The actual number of different atoms within a molecule

C₆H₁₄

Question 4

6A - What is a functional group?

Answer 4

The group of atoms which are responsible for an organic compound’s chemical properties

Question 5

6A - What is general formula?

(Give the general formula of alkanes as an example)

Answer 5

The number of each type of atom within the n^th molecule in a homolgous series

C_nH_{<span>2n+2</span>}

Question 6

6A - What is structural formula?

(Give the structural formula of ethanol as an example)

Answer 6

A simplified way of showing which atoms are attached to others in a compound

C₂H₅OH → CH₃CH₂OH

Question 7

6A - What is displayed formula?