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Which of the following is correct for a ...

Which of the following is correct for a first order reaction ?

A

`t_1/2 alpha alpha`

B

`t_1/2 alpha alpha`

C

`t_1/2 alpha alpha^@`

D

`t_1/2 alpha alpha^2`

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Knowledge Check

  • Which of the following reaction is a zero order reaction ?

    A
    `2NO+O_(2)to2NO_(2)`
    B
    `H_(2)+Cl_(2)to2HCl`
    C
    `CH_(3)COOC_(2)H_(5)+H_(2)OhArrCH_(3)COOH+C_(2)H_(5)OH`
    D
    `CH_(3)COOC_(2)H_(5)+NaOHtoCH_(3)COONa+C_(2)H_(5)OH`

  • Which of the following reaction is a zero order reaction?

    A
    `CH_(3)COOC_(2)H_(5) + HOH to CH_(3)CHCOOH + C_(2)H_(5)OH`
    B
    `H_(2)Cl_(2) to 2HCl`
    C
    `2NO_(2) + O_(2) to 2NO_(2)`
    D
    `CH_(3)COOC_(2)H_(5) + NaOH to CH_(3)COONa + C_(2)H_(5)OH`

  • Which of the following is correct order of the evolutionary history of man?

    A
    Peking man, homo sapiens Neanderthal man ,Cro-Magnon man.
    B
    peking man , Neanderthal man,Homo sapiens,cromagnon man.
    C
    Peking man,hedalberg man, Neanderthal man,cromagnon man
    D
    peking man, Neanderthal man,Homo sapiens Hedalberg man
    • SHARAM PUBLICATION-CHEMICAL KINETICS-EXERCISE
    1. Which of the following is correct for a first order reaction ?

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    2. Consider the reaction 2A + b rarr Products When concentration of B a...

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    3. The rate of first order reaction is 1.5 xx 10^(-2)" mol L"^(-1)" min"^...

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    4. The rate constant for the reaction 2N2O5rarr2N2O4 +O2 is 3xx10^-5 sec^...

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    5. In a first order reaction, A to B, if k is rate constant and the initi...

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    6. If 60% of a first order reaction was completed in 60 minutes. 50% of t...

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    7. For the reaction of the type A + B rarr product , -d[A] / dt is equal ...

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    8. The half life of a reaction is halved as the initial concentration is ...

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    9. The half life period of a first order reaction is 30 minutes. The time...

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    10. Which is correct for zero order reaction ?

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    11. Temperature dependent equation can be written as

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    12. In the reaction 2N2 O5 rarr 4NO2 + O2 , the initial pressure is 500 ...

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    13. A reaction P rarr Q completed 25% in 25 minutes , 50% is completed in...

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    14. A reaction involving two different reactants can never be

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    15. The rate of a reaction can be expressed by Arrherius equation as : k =...

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    16. t1/4 can be taken as time taken for the concentration of the reactant ...

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    17. The rate equation for the reaction 2A + B rarr C is found to be : rate...

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    18. In a first order reaction, the reactant concentration decreases from 0...

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    19. The rate law for a reaction between the substances A and B is given by...

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    20. In respect to the equation k = A xx e^ -Ea/ RT in chemical kinetics wh...

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