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प्रश्न
Match the items of Column I and Column II.
| Column I | Column II |
| (i) Lead storage battery | (a) maximum efficiency |
| (ii) Mercury cell | (b) prevented by galvanisation |
| (iii) Fuel cell | (c) gives steady potential |
| (iv) Rusting | (d) Pb is anode, PbO2 is cathode |
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उत्तर
| Column I | Column II |
| (i) Lead storage battery | (d) Pb is anode, PbO2 is cathode |
| (ii) Mercury cell | (c) gives steady potential |
| (iii) Fuel cell | (a) maximum efficiency |
| (iv) Rusting | (b) prevented by galvanisation |
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