IIT JEE : Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
1.It is impossible to measure the actual voltage of any half cell by itself because |
| of resistance of wire |
| electrical neutrality is maintained |
| a reaction does not take place of its own |
| both half cell reactions occur simultaneously |
2.An electrochemical cell can be changed into an electrolytic cell by |
| changing the electrolytes in two half cells |
| changing the conc. of the electrolytes |
| providing higher potential from outside |
| reversing the electrodes |
3.In electrolysis, one mole of aluminium atoms is deposited by |
| five moles of electrons |
| three moles of electrons |
| two moles of electrons |
| one mole of electrons |
4.During discharge in the case of lead storage batteries density of sulphuric acid |
| increases |
| decreases |
| may decrease or increase |
| remains constant |
5.For reducing 1 mole of ferrous ions to iron the number of faradays of electricity required will be |
| 4 |
| 1.5 |
| 0.5 |
| 1 |
More Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS available in next pages
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