EASY
AS and A Level
IMPORTANT
Earn 100

State the oxidation number of the bold atom in Al2Cl6.

Important Questions on Redox Reactions

EASY
AS and A Level
IMPORTANT
State the oxidation number of the bold atom in NH3.
EASY
AS and A Level
IMPORTANT
State the oxidation number of the bold atom in ClO2-.
EASY
AS and A Level
IMPORTANT
State the oxidation number of the bold atom in CaCO3.
EASY
AS and A Level
IMPORTANT

Deduce the change in oxidation number for the bold atoms or ions in the following equation. State whether oxidation or reduction has taken place.

2I-+Br2         I2+2Br-

EASY
AS and A Level
IMPORTANT

Deduce the change in oxidation number for the bold atoms or ions in the following equation. State whether oxidation or reduction has taken place.

NH42Cr2O7           N2+4H2O+Cr2O3
EASY
AS and A Level
IMPORTANT

Deduce the change in oxidation number for the bold atoms or ions in the following equation. State whether oxidation or reduction has taken place.

As2O3+2I2+2H2O             As2O5+4H++4I-

EASY
AS and A Level
IMPORTANT
Identify the oxidising agent and the reducing agent in the reactions, 2I-+Br2         I2+2Br- and As2O3+2I2+2H2O             As2O5+4H++4I-.