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Question
Match the items of Column I and Column II.
| Column I | Column II |
| (i) Lechlanche cell | (a) cell reaction \[\ce{2H2 + O2 -> 2H2O}\] |
| (ii) Ni–Cd cell | (b) does not involve any ion in solution and is used in hearing aids. |
| (iii) Fuel cell | (c) rechargeable |
| (iv) Mercury cell | (d) reaction at anode, \[\ce{Zn -> Zn^{2+} + 2e^{-}}\] |
| (e) converts energy of combustion into electrical energy |
Solution
| Column I | Column II |
| (i) Lechlanche cell | (d) reaction at anode, \[\ce{Zn -> Zn^{2+} + 2e^{-}}\] |
| (ii) Ni–Cd cell | (c) rechargeable |
| (iii) Fuel cell | (a) cell reaction \[\ce{2H2 + O2 -> 2H2O}\] |
| (e) converts energy of combustion into electrical energy | |
| (iv) Mercury cell | (b) does not involve any ion in solution and is used in hearing aids. |
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