Chapter 14 - Oxidation And Reduction

Question 0

Define reduction in terms of electronic transfer

RIG

Answer 0

A process in which there is gain of electrons from an atom or an ion

Question 1

Define oxidation in terms of electronic transfer

OIL

Answer 1

A process in which there is a loss of electrons from an atom or an ion

Question 2

What is oxidation in terms of oxidation number

Answer 2

INCREASE in oxidation number

Question 3

What is reduction in terms of oxidation number

Answer 3

DECREASE in oxidation number

Question 4

Definition of oxidation number

Answer 4

The charge which an atom has or appears to have in a compound

Question 5

Definition of Redox reaction

Answer 5

A reaction in which oxidation and reduction occurs at the same time

Question 6

Oxidising agent

Answer 6

A substance which does the oxidising and it itself gets reduced

Question 7

Reducing agent

Answer 7

A substance which does the reducing and it itself gets oxidised

Question 8

Common Oxidising Agents

Answer 8

Hydrogen peroxide (H2O2) used to bleach hair

Chlorine added to swimming pools for sterilisation

Iodine (I2) in tincture of iodine used as a disinfectant

Question 9

Common reducing agents

Answer 9

Sulfur dioxide (SO2) used to bleach wood pulp in paper manufacture