Which substance is serving as a reducing agent in the following reaction?
$F e S O_{4} + M g \to M g S O_{4} + F e$

M g

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S O_{4}^{2 -}

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F e

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M g S O_{4}

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Solution

The correct option is A $M g$
$M g$ acts as a reducing agent in the following reaction.

$F e S O_{4} + M g \to M g S O_{4} + F e$

Magnesium changes from 0 to +2 oxidation state, so undergoes oxidation and hence acts as a reducing agent.

Hence, the correct option is $A$ .

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Similar questions

Q. Which one of the following pairs of reactants can undergo a reaction under appropriate conditions ?

i . {MgSO}_{4} + Fe ii . {FeSO}_{4} + Zn iii . {MgSO}_{4} + Pb iv . {CuSO}_{4} + Fe

Q. Which one of the following pairs of reactants can undergo a reaction under appropriate conditions ?

i . {MgSO}_{4} + Fe ii . {FeSO}_{4} + Zn iii . {MgSO}_{4} + Pb iv . {CuSO}_{4} + Fe

[0.8 mark]

Q. Which of the following reactions will take place?
A. Mg + ZnSO₄ → MgSO₄ + Zn
B. Zn + CuCl₂ → ZnCl₂ + Cu
C. Cu + FeSO₄ → CuSO₄ + Fe
D. Fe + MgCl₂ → FeCl₂ + Mg

(a) C and D
(b) A and B
(c) A, B and C
(d) all the above

Q. Which of the following reactions involve Iron as a reactant?

(i)

Fe + 2 HCl \to {FeCl}_{2} + H_{2}

(ii)

{FeSO}_{4} + Mg \to {MgSO}_{4} + Fe

(iii)

{FeCl}_{2} + 2 NaOH \to Fe {(OH)}_{2} + 2 NaCl

(iv)

4 Fe + 3 O_{2} + 2 H_{2} O \to 2 {Fe}_{2} O_{3} . H_{2} O

When magnesium metal reacts with sulphuric acid it forms magnesium sulphate along with the evolution of hydrogen gas.

$M g + H_{2} S O_{4}$ $\to$ $M g S O_{4}$ + $H_{2}$

For experimental studies the conditions of the reaction was modified and rate of reaction was monitored. In which of the following case the occurance of the reaction is fastest?

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Which substance is serving as a reducing agent in the following reaction? FeSO4+Mg→MgSO4+Fe

The correct option is A MgMg acts as a reducing agent in the following reaction.FeSO4+Mg→MgSO4+FeMagnesium changes from 0 to +2 oxidation state, so undergoes oxidation and hence acts as a reducing agent.Hence, the correct option is A.

Which substance is serving as a reducing agent in the following reaction?
$F e S O_{4} + M g \to M g S O_{4} + F e$

The correct option is A $M g$
$M g$ acts as a reducing agent in the following reaction.

$F e S O_{4} + M g \to M g S O_{4} + F e$

Magnesium changes from 0 to +2 oxidation state, so undergoes oxidation and hence acts as a reducing agent.

Hence, the correct option is $A$ .