Observe the reactions given below. Classify the reactants based on whether they are oxidized or reduced. Zn (s) + Cu2 + (aq) →Zn2 + (aq) + Cu (s) 3Fe (s) + 4H2O (g) →Fe2O3 (s) + 4H2 (g) Drag the appropriate items to their respective bins. View Available Hint (s)

Question

Krish Mathews

Chemistry

11 November, 12:27

Observe the reactions given below. Classify the reactants based on whether they are oxidized or reduced. Zn (s) + Cu2 + (aq) →Zn2 + (aq) + Cu (s) 3Fe (s) + 4H2O (g) →Fe2O3 (s) + 4H2 (g) Drag the appropriate items to their respective bins. View Available Hint (s)

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Waddles · Answer 1

1. Zn is oxidize.

Cu is reduced.

2. Fe is oxidize.

H2 is reduced.

Explanation:

1. Zn (s) + Cu2 + (aq) →Zn2 + (aq) + Cu (s)

From the equation,

Zn changes oxidation number from 0 to + 2. Therefore Zn is oxidized.

Cu2 + changes oxidation number from + 2 to 0. Therefore, Cu2 + is reduced

2. 3Fe (s) + 4H2O (g) →Fe2O3 (s) + 4H2 (g)

From the equation,

Fe changes oxidation number from 0 to + 3. Therefore, Fe is oxidized.

H changes oxidation number from + 1 to 0. Therefore, H is reduced