U3.2: Electron Transfer Reactions

Question 1

Define oxidation reactions

Answer 1

Oxidation reactions show a loss in electrons and hydrogen, a gain of Oxygen and an increase in oxidation number

Question 2

Define reduction reactions

Answer 2

Reduction reactions show a gain in electrons and hydrogen, a loss of Oxygen and a decrease in oxidation number

Question 3

State what alcohols can be oxidised to

Answer 3

Alcohols can be oxidised to carboxylic acids

Question 4

Oxidising agents get reduced or oxidised?

Answer 4

Oxidising agents get reduced

Question 5

Show the gain and loss of electrons in an equation. State which is oxidation and reduction

Answer 5

• x + e- –> y (reduction)
• x –> y + e- (oxidation)

Question 6

State why noble gases dont gain or lose electrons

Answer 6

They do not have IE, EN values or oxidation states

Question 7

For noble gases, which periods have 8 electrons in the outer shell

Answer 7

The first 2 periods only, beyond period 2, there is an octet outer shell