IIT JEE : Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
6.The oxidation sate of phosphorus is + 3 in |
| Orthophosphoric acid |
| Phosphorus acid |
| Metaphosphoric acid |
| Pyrophosphoric acid. |
7.Which of the following process always involve the decrease in oxidation number? |
| Hydrolysis |
| Decomposition |
| Reduction |
| Oxidation. |
8.Burning of lime to give calcium oxide is |
| oxidation process |
| redox process |
| disproportionation |
| decomposition. |
9.A direct current deposits 54 g of silver (At. mass = 108) during the electrolytic reaction. The same amount of electricity would deposit aluminium (At. mass = 27) from aluminium chloride solution equal to |
| 4.5 g |
| 5.4 g |
| 54 g |
| 27 g. |
10.How much copper can be deposited by 2.5 Faraday of electricity? |
| 2 moles |
| 2.5 moles |
| 1.25 moles |
| 0.125 moles. |
More Redox Reactions And Electrochemistry QUESTIONS AND ANSWERS available in next pages
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