A Level Chapt 2 Redox

Question 1

Disproportionate reaction

Answer 1

A Disproportionate reaction is a redox rxcn where 1 element goes through oxidation and reduction to form 2 products.
- It’s oxidation number increases and decreases at the same time

Question 2

Balancing eqns oxidation state method

Answer 2

1. Cal oxi state
2. Balance atoms
3. e- gained = e- lost (multiply & join eqns)
4. Balance charges w/ (H+ for acid, OH- for alkaline)
5. Balance H atoms w/ H2O

Question 3

Comproportionate reaction

Answer 3

Comproportionate reaction is a redox rxcn where 2 reactants with the same element but diff oxidation states form 1 compound with an intermediate oxi state

Question 4

Balance eqns with half eqn method
Acidic & alkaline

Answer 4

“Apple of his eye”

1. Atoms
2. Oxygen w/ H2O
3. Hydrogen w/ H+
   for alkaline: neutralise all H+ w/ OH- after
4. e- (charges)

Question 5

iodate ion formula