Home
Class 12
CHEMISTRY
The inversion of a sugar follows first o...

The inversion of a sugar follows first order rate equation which can be followed by noting the change in the rotation of the plane of polarization of light in the polarimeter. If `r_(oo), r_(f)` and `r_(0)` are the rotations at `t = oo, t = t`, and `t = 0`, then the first order reaction can be written as

A

`k=(1)/(t)log_(e).(r_(t)-r_(oo))/(r_(0)-r_(oo))`

B

`k=(1)/(t)log_(e).(r_(0)-r_(oo))/(r_(t)-r_(0))`

C

`k=(1)/(t)log_(e).(r_(oo)-r_(0))/(r_(oo)-r_(t))`

D

`k=(1)/(t)log_(e).(r_(oo)-r_(t))/(r_(oo)-r_(0))`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    OP TANDON|Exercise OBJECTIVE QUESTIONS (LEVEL-B) SET I|48 Videos

  • CHEMICAL KINETICS

    OP TANDON|Exercise OBJECTIVE QUESTIONS (LEVEL-B) SET II|13 Videos

  • CHEMICAL KINETICS

    OP TANDON|Exercise PRACTICE PROBLEMS|70 Videos

  • CARBOXYLIC ACIDS AND THEIR DERIVATIVES

    OP TANDON|Exercise Integer|4 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Self Assessment (Integer type).|3 Videos

Similar Questions

Explore conceptually related problems

The ratio of t_(0.75) and t_(0.5) for first order reaction :-

If [A] is the concentration of A at any time t and [A]_(0) is the concentration at t=0 , then for the 1^(st) order reaction , the rate equation can be written as _____.

For the reaction A rarr B which is first order in A, which of the following change, as the concentration of A changes? (P) Rate (Q) Rate constant (R) Half-life

t_(1//4) can be taken as the time taken for concentration of reactant to drop to .^(3)//_(4) of its initial value. If the rate constant for a first order reaction is K , then t_(1//4) can be written as:

Which of the following option w.r.t. increasing bond order is correct ?

For a first order reaction t_(0.75) is 1386 s . Therefore, the specific rate constant is

For a first order reaction, t_(0.75) is 1386 seconds, then the specific rate constant in sec^(-1) is

OP TANDON-CHEMICAL KINETICS-OBJECTIVE QUESTIONS (LEVEL-A)
  1. In the following first order reactions: A+ "Reagent" overset(K(1))(r...

    Text Solution

    |

  2. Two reactions A rarr products and B rarr products have rate constants ...

    Text Solution

    |

  3. The inversion of a sugar follows first order rate equation which can b...

    Text Solution

    |

  4. The number of molecules of the reactants taking part in a single step ...

    Text Solution

    |

  5. The inversion of cane sugar into glucose and frucose is :

    Text Solution

    |

  6. The unit of rate constant obeying the rate expression r=k[A]'[B]^(2//3...

    Text Solution

    |

  7. For the reaction, N(2)O(5) rarr 2NO(2)+O(2), Given -(d[N(2)O(5)])/...

    Text Solution

    |

  8. The rate constant is unmerically the same for three reactions of first...

    Text Solution

    |

  9. In the Q.No , 108 if the concentration of the reactant is less than 1...

    Text Solution

    |

  10. In the Q.No 108 , if the concentration of the reactant is 1 M , then ...

    Text Solution

    |

  11. A first order reaction is one-fifth completed in 40 minutes. The time ...

    Text Solution

    |

  12. The rate constant off a first order reaction, Ararr"Products", is 60...

    Text Solution

    |

  13. For first order reaction, the half life is dependent of :

    Text Solution

    |

  14. Activation energy of a chemical reaction can be determined by

    Text Solution

    |

  15. The experimental data for the reaction 2A+B(2)rarr2AB, is : The r...

    Text Solution

    |

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

    Text Solution

    |

  17. Cyclopropane rearranges to form propane : DeltararrCH(3)-CH=CH(2) ...

    Text Solution

    |

  18. The rate constant k, for the reaction N(2)O(5)(g) rarr 2NO(2) (g) + (1...

    Text Solution

    |

  19. The reaction XrarrY (Product ) follows first order kinetics. In 40 min...

    Text Solution

    |

  20. In a first order reaction, the concentration of the reactant, decrease...

    Text Solution

    |