The cell reaction for a certain alkaline dry cell isThe cell reaction for a cert

Question

The cell reaction for a certain alkaline dry cell isThe cell reaction for a certain alkaline dry cell is

Mg(s) + 2MnO2(s) + H2O(l)Mg(OH)2(s) + Mn2O3(s)Mg(s) + 2MnO2(s) + H2O(l)Mg(OH)2(s) + Mn2O3(s)

Which of the following statements concerning this cell is/are incorrect?Which of the following statements concerning this cell is/are incorrect?

1.MnO2(s) is oxidized to Mn2O3(s) during cell discharge.1.MnO2(s) is oxidized to Mn2O3(s) during cell discharge. 2. Water is consumed during the discharge of this cell.2. Water is consumed during the discharge of this cell. 3.Mg(OH)2(s) forms at the anode during discharge of this cell.3.Mg(OH)2(s) forms at the anode during discharge of this cell.

Select one:

a. 1 only

b. 2 only

c. 3 only

d. 2 and 3

e. 1, 2 and 3

Explanation / Answer

Answer:-

d. 2 and 3 only

Because from the given chemical reaction it is evident that H2O is being consumed and Mg is being oxidised as oxidation occurs at the anode.

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