ECAT Chemistry Reaction Kinetics Test Online

Chemistry Reaction Kinetics MCQS Online Test

ECAT Chemistry Reaction Kinetics Chapter Online Test

Total Questions: 165
Time Allowed: 60 Minutes
Total Marks: 165
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Chemistry Reaction Kinetics Test

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Chemistry

1. The addition of a catalyst to a reaction

2. A reaction involving two different reactants can never be

3. The unit of ionic product of H₂O is

4. The value of Kp is greater than Kc for a gascous reaction when

5. The hydrolysis of ester in alkaline medium is a

6. Hydrogen gas and iodine vapours combine to form HI at 425°C. The same composition of mixture is present if we start with decomposition of HI. It suggests

7. The rate of reaction

8. Choose the incorrect statement from the followings

9. In the equilibrium N₂ + 3H₂ ⇌ 2NH₃ + 22 kcal the formation of ammonia is favoured by

10. The rate of a reaction that does not involve gases, does not depend upon

11. Which of the following is the property of inhibitors?

12. 4.5 moles each of hydrogen and iodine heated in a sealed ten liter vessel. At equilibrium 3 moles of HI were found. The equilibrium constant for H₂(g) + I₂(g) ⇌ 2HI(g) is

13. One the basis of Le-Chatelier’s principle, predict which of the following conditions would be unfavourable for the formation of SO₃? Given that 2SO₂ + O₂ ⇌ 2SO₃; ∆H = -42 kcal

14. The rate of reaction between two specific time intervals is called

15. Initially the rate to increase in concentration of products in a reaction is

16. The reaction 2H₂O₂ → 2H₂O + O₂ is, r = k [H₂O₂]

17. Large the surface area or the reactant molecules

18. An excess of aqeous AgNO₃ is added to aqueous barium chloride and precipitate is removed by filtration. What are the main ions in the filtrate

19. Rate of 1st order depends upon

20. The firs order rate constant of decomposition of N₂S₅ is 6.2 x 10¯⁴ sec. The initial pressure is 290 mm Hg and final is 360 mmHg. t/2 is

21. Choose the incorrect statement from the following

22. 75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed?

23. The time taken for 90% of a first order reaction to complete is approximately

24. In a reaction A + B ⇌ C + D, the initial concentration of A and B were 0.9 mol dm¯³ each. At equilibrium the concentration of D was found to be 0.6 mol dm¯³. What is the value of equilibrium constant for the reaction?

25. The average rate and instantaneous rate of a reaction are equal


 

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