Question

3. Which of the following statements about the given reaction are correct?
3Fe (s) + 4H20 (g) → Fe3O4 (s) + 4 H2 (g)
(i) Iron metal is getting oxidised
(ii) Water is getting reduced
(iii) Water is acting as reducing agent
(iv) Water is acting as oxidising agent
(a) (i), (ii) and (iii)
(b) (ii) and (iv)
(c) (i), (ii) and (iv)
(d) (ii) and (iv)​

Answer 1

Answer:

C

Explanation:

i) Iron metal is getting oxidized from Fe⁰ to Fe⁺⁸/₃ (showing loss of electrons)

ii) water is getting reduced as it loses an oxygen atom to form H₂O.

iii) Reducing agents get oxidized themselves while the adjacent molecules get reduced. As we have already shown that iron is being oxidized and water is being reduced, this statement is incorrect.

iv) this statement is correct, as oxidizing agents (water in this case) get reduced themselves, while the adjacent molecules or atoms (iron in this case) get oxidized.

Answer 2

Answer:

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(i) Iron metal is getting oxidised

(ii) Water is getting reduced

(iv) Water is acting as oxidising agent