CBSE Class 10 Science Question 7 of 60

Solved 2022 Term 1 Question Paper CBSE Class 10 Science — Question 7

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7
Question

Question 7

Which of the following statements about the reaction given below are correct?

MnO2 + 4HCl ⟶ MnCl2 + 2H2O + Cl2

(i) HCl is oxidized to Cl2

(ii) MnO2 is reduced to MnCl2

(iii) MnCl2 acts as an oxidizing agent

(iv) HCl acts as on oxidizing agent

  1. (ii), (iii) and (iv)
  2. (i), (ii) and (iii)
  3. (i) and (ii) only
  4. (iii) and (iv) only
Answer

(i) and (ii) only

Reason — The reaction is a redox reaction where, HCl is oxidized to Cl2 as it loses hydrogen whereas MnO2 is reduced to MnCl2 as it loses oxygen.