Question

State whether the following reaction is an oxidation reaction or reduction reaction.
Show it with the help of arrows & name the oxidising and reducing agent as well.

(a) 3 MnO₂ + 4 Al gives 4Mn + 2Al₂O₃
(b) Fe₂O₃ +3Co gives 2Fe₃CO₂
(c) Cu+2AgNO₃ gives Cu (NO₃)₂ +2Ag
(d) H2S+ Cl₂ gives 2HCl +S
(e) CuO+H₂ gives Cu+H₂O​

Answer 1

Reaction

Substance

oxidised

Substance

reduced

Reducing agent

Oxidising agent

(i)

Ca

Cl2

Ca

Cl2

(ii)

A1

MnO2

Al

MnO2

(iii)

CO

Fe2O3

CO

Fe2O3

(iv)

Fe

S

Fe

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