IIT JEE : Rates Of Chemical Reactions And Chemical Kinetics QUESTIONS AND ANSWERS :: part2 : 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.Which of the following is an acceptable value of mmolecularity ? |
| 5 |
| 0 |
| 3/2 |
| 2. |
2.Which of the following reactions is the fastest? |
| Rusting of iron |
| Burning of sulphur |
| Transition of monoclinic sulphur to rhombic sulphur |
| Precipitation of barium sulphate by mixing solutions of sodium sulphate and barium chloride. |
3.The catalyst remains unchanged at the end of the reaction as regards |
| quantity |
| chcmical composition |
| quality and chcmical composition |
| quantity and chemical composition. |
4.The minimum amount of energy that the reacting molecules must possess at the time of collisions in order to produce effective collision os called |
| Activation energy |
| Threshold energy |
| Internal energy |
| Free energy. |
5.For a slow reaction the ratio of rate constants at 350C to 250C is generally |
| zero |
| two |
| three |
| five |
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