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A first order reaction is 10% complete i...

A first order reaction is `10%` complete in 20 min. the time taken for `19%` completion is :

A

30 min

B

40 min

C

50 min

D

38 min

Text Solution

Verified by Experts

The correct Answer is:
B
10% of the reaction is completed in 20 min. Next 10% of the reaction wil be completed in next 20 min.Hence, 10%+9%=10% of the reaction will be completed in approx=40min.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL KINETICS -Exercise 1
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  2. The half life period of a substance is 50 minutes at a certain initial...

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  3. How much time is requred for two - third completion of a first order r...

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  4. t(1//4) can be taken as the time taken for concentration of reactant t...

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  5. For a reaction, the rate constant is 2.34 s^(-1). The half-life period...

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  6. 75% of a first order reaction was completed in 32 min. When was 50% of...

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  7. Rate constant for a reaction is 10^(-3) S^(-1). How much time is requi...

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  8. A first order reaction is 10% complete in 20 min. the time taken for 1...

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  9. For a zero order reaction, the integrated rate equation is

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  10. If the half-time for a particular reaction is found to be constant and...

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  11. The integrated rate equation is kt= "log" C(0)-"log"C(t). The stra...

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  12. On the basis of Arrhenius equation, consider the following statement (...

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  13. What will happen, on increasing the temperature or decreasing the act...

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  14. The potential energy diagrams for four reaction are given below W...

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  15. Rate constant k of a reaction is dependent on temperatur: k=Ae^(Ea//...

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  16. In the graph of Arrhenius equation , the intercept and slope are

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  17. The rate constant of a reaction is given by k = 2.1 xx 10^(10) exp(-27...

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  18. Rate of a reaction can be expressed by Arrhenius equation as: k = Ae...

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  19. The decomposition of hydrocarbon follows the equation k=(4.5xx10^(11)...

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  20. The activation energy for a reaction at temperature T K was found to b...

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