IIT JEE : Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS :: part2 : 26 to 30
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
26.Electrolytes conduct electric current: |
| by movement of electric charge through them |
| by the movement of ions |
| by the movement of molecules |
| by allowing electrons to flow through them from cathode to anode |
27.A current of 2 amp passing for five hours through the molten tin salt deposits 22.2 g of tin. The oxidation state of tin in the salt is |
| +4 |
| +3 |
| +2 |
| +1. |
28.A current of 9.65 ampere is passed through the aqueous solution of NaCl using suitable electrodes for 1000 s. The amount of NaOH formed during electrolysis is |
| 2.0 g |
| 4.0 g |
| 6.0 g |
| 8.0 g |
29.Which of the following statements is incorrect about electrochemical cell? |
| Salt bridge maintains the electrical neutrality of the electrolytes |
| Chemical energy is converted into electrical energy |
| Electrons are released at anode |
| Cell can work indefinitely |
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