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75% of a first order reaction was comple...

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

A

24 minutes

B

16 minutes

C

8 minutes

D

4 minutes

Text Solution

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The correct Answer is:
B
16 minutes
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ICSE-CHEMICAL KINETICS-ISC EXAMINATION QUESTIONS (PART-I (OBJECTIVE QUESTIONS ) B .COMPLETE THE FOLLOWING STATEMENTS BY SELECTING THE CORRECT ALTERNATIVE FROM THE CHOICES GIVEN :)
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  2. The reaction between X and Y is first order with respect to X and seco...

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  3. 75% of a first order reaction was completed in 32 minutes. When was 50...

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  4. In a plot of log k vs 1/T, the slope is

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  5. For reaction 2N2 O5 = 2NO2 + O2, the rate and rate constants are 1.02 ...

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  6. For a first order reaction, the rate constant for decomposition of N2 ...

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  7. The rate constant of a reaction varies :

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  8. A quantitative relationship between the temperature and rate constant ...

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  9. The reaction between X and Y is first order with respect to X and seco...

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  10. 75% of a first order reaction was completed in 32 minutes. When was 50...

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  11. In a plot of log k vs 1/T, the slope is

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  12. For reaction 2N2 O5 = 2NO2 + O2, the rate and rate constants are 1.02 ...

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  13. For a first order reaction, the rate constant for decomposition of N2 ...

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  14. The rate constant of a reaction varies :

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  15. A quantitative relationship between the temperature and rate constant ...

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  16. The reaction between X and Y is first order with respect to X and seco...

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  17. 75% of a first order reaction was completed in 32 minutes. When was 50...

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  18. In a plot of log k vs 1/T, the slope is

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  19. For reaction 2N2 O5 = 2NO2 + O2, the rate and rate constants are 1.02 ...

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  20. For a first order reaction, the rate constant for decomposition of N2 ...

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