ICSE Class 10 Chemistry Question 2 of 23

Solved 2025 Specimen Paper ICSE Class 10 Chemistry — Question 4

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4
Question

Question 1(iv)

The equation below shows the reaction between element 'X' and dilute sulphuric acid.

X(s) + H2SO4 (aq.) ⟶ XSO4 (aq.) + H2 (g)

Which particles are responsible for conducting electricity in dilute sulphuric acid and compound XSO4?

  1. Electrons
  2. Only positive ions
  3. Only negative ions
  4. Both positive and negative ions
Answer

Both positive and negative ions

Reason — Sulphuric acid will dissociate into H+ and SO42-. Also, in aqueous solution, the compound XSO4 would dissociate into X+ and SO42-. In both cases, both positive and negative ions are responsible for conducting electricity.