Chapter 16.1 - 'Introducing Redox Reactions'

Question 1

Define ‘Oxidation’.

Answer 1

The loss of electrons.

Question 2

Define ‘Reduction’.

Answer 2

The gain of electrons.

Question 3

State how we know that oxidation and reduction must occur simultaneously.

Answer 3

There is no overall loss of electrons.

Question 4

State what a ‘reducing agent’ does.

Answer 4

1. Loses electrons.
2. Reduces the oxidising agent.
3. Undergoes oxidation.

Question 5

State what an ‘oxidising agent’ does.

Answer 5

1. Accepts electrons.
2. Oxidises the reducing agent.
3. Undergoes reduction.

Question 6

State why half equations must be balanced according to the n. of electrons.

Answer 6

As there is no loss of electrons, the electrons in both half equations must add up, and cancel eachother out.

Question 7

Describe a ‘conjugate redox pair’.

Answer 7

An electron donor and its corresponding acceptor.