Question

4. Name the substance oxidised, substance reduced, oxidising and reducing agents in each of the following reactions: (a) Zn + CuSO⁴ --------→ ZnSO⁴ + Cu (b) 4Na + O² ------→ 2Na²O​

Answer 1

Answer:

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Answer 2

Answer:

(a) Copper sulphate is the oxidizing agent as it gives oxygen to zinc and zinc is reducing agent as it accepts oxygen

(b) Sodium (Na) gains oxygen and gets oxidised to sodium oxide (Na2O)

Explanation:

(b) A substance is said to oxidised if it loses its electrons or addition of oxygen to the substance. The term oxidation was used to describe reactions where an element combines with oxygen. Oxidation meant gaining oxygen and Reduction meant losing oxygen

A reaction within which there is both oxidation and reduction is called a redox reaction