Home
Class 12
CHEMISTRY
For the reaction A rarr B, the rate law ...

For the reaction `A rarr B`, the rate law expression is rate `=k[A]`. Which of the following statements is incorrect ?

A

The reaction follows first order kinetic

B

The `t_(1/2)` of reaction depends upon initial concentration of reactants

C

K is constant for the reaction at a constant temperature

D

The rate law provides a simple way of predicting the concentration of reactants and products at any time after the start o f the reaction

Text Solution

Verified by Experts

The correct Answer is:
B
For first order reaction, `t_(1/2)`does not depend on the initial concentration , `t_(1/2) = (0.693)/K`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    NARAYNA|Exercise EXERCISE -1 (C.W) (RATE OF REACTION & FACTORS)|14 Videos

  • CHEMICAL KINETICS

    NARAYNA|Exercise EXERCISE -1 (C.W) (ORDER OF REACTION)|14 Videos

  • CHEMICAL KINETICS

    NARAYNA|Exercise CHECK YOUR GRASP|14 Videos

  • CARBOXYLIC ACID

    NARAYNA|Exercise All Questions|288 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    NARAYNA|Exercise ASSERTION & REASON TYPE QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

For a reaction : 2A + 2B rarr products, the rate law expression is r = k[A]^(2) [B] . Which of the following is/are correct?

For the reaction , 2A + B rarr C +D , the rate law is rate =k[B]. Which of the following mechanism would be consistent with this information?

For a reaction pA +qB rarr products, the rate law expression is r=k[A]^(m)[B]^(n) then

For a reaction pA +qB rarr products, the rate law expression is r=k[A]^(l)[B]^(m) then

For a reaction pA + qB rarr Product, the rate law expresison is r = k[A][B]^(m) . Then

For a hypothetical reaction, A rarr L the rate expression is rate =-(dC_(A))/(dt)

For a reaction A+ B rarr products, rate law expression for rate , r=K[A][B]^2 . If the volume of the container is reduced to half of its original volume, the rate of reaction will become

For a hypothetical reaction aA + bB rarr Product, the rate law is: rate = K[A]^(x)[B]^(y) , then which of the following relation is possible-

NARAYNA-CHEMICAL KINETICS -CUQ (RATE OF REACTION)
  1. The order of a reaction

    Text Solution

    |

  2. The order of a reaction can be predicted with the help of

    Text Solution

    |

  3. For the reaction A rarr B, the rate law expression is rate =k[A]. Whic...

    Text Solution

    |

  4. The decomposition of N(2)O into N(2) and O in the presence of gaseous ...

    Text Solution

    |

  5. C(o) =initial concentration of the reactant C(t) = concentration of th...

    Text Solution

    |

  6. In a first order reaction fraction of the total concentration of the r...

    Text Solution

    |

  7. For a first order reaction, if ‘a’ is the initial concentration of rea...

    Text Solution

    |

  8. If the rate expression for a reaction is (dx)/(dt)=k[A]^(1//2)[B]^(3//...

    Text Solution

    |

  9. Which of the following statements is false

    Text Solution

    |

  10. The time for half change for a zero order reaction is....................

    Text Solution

    |

  11. Rate equation for a second order is

    Text Solution

    |

  12. The hydrolysis of ethyl acetate CH(3)COOC(2)H(5) + H(2)O overset(H^(+)...

    Text Solution

    |

  13. Radioactive decay follows which order kinetics?

    Text Solution

    |

  14. A reaction involiving two different reactants can never be:

    Text Solution

    |

  15. What is the order of a reaction which has a rate expression rate = K[A...

    Text Solution

    |

  16. The molecularity of a reaction will be

    Text Solution

    |

  17. Which of the following is wrong

    Text Solution

    |

  18. Which statement is correct ?

    Text Solution

    |

  19. Which of the following cannot be determined experimentally.

    Text Solution

    |

  20. Which of the following statements regarding molecularity of the reacti...

    Text Solution

    |