What is the order of kinetics in the SN1 mechanism ?

Related Mcqs:

1. Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?

   A. CH3-X
   B. (CH3)3 C-CH2 – X
   C. (CH3)2 CH – X
   D. (CH3)3 C – X

2. Which of the following haloalkane is hydrolysed by SN1 mechanism?

   A. CH3Br
   B. CH3CH2Br
   C. CH3CH2CH2Br
   D. (CH3)3CBr

   Submitted by: Muhammad Ali Kunbhar

3. The mechanism by which the genetic information can be duplicated is called_________________?

   A. Duplication
   B. Transcription
   C. Replication
   D. Mutation

4. Species are formed in one step of reaction mechanism and used up in another step are called:

   A. Catalyst
   B. Intermediate
   C. inhibitor
   D. activated complex

   Submitted by: Said wali shah

5. What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B] ?

   A. Zero
   B. One
   C. Two
   D. Three

6. Diameter of an atom is in the order of________________?

   A. 0.2m
   B. 0.2mm
   C. 0.2nm
   D. 0.2pm

7. Which is the unit of (K) rate constant for zero order reaction ?

   A. s-1
   B. mol dm-3 s-1
   C. mol-1 dm3 s-1
   D. mol-2 dm6 s-1

8. For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?

   A. Single
   B. Square
   C. Cube
   D. Raise to power four

9. Which of the following type of reaction is 3rd order reaction_________________?

   A. 2N2O5 = 2N2O4 + O3
   B. NO + O3 ? NO2 + O2
   C. 2FeCl3 + 6KI ? 2FeI2 + 6KCl + I2
   D. None of these

10. Which order of reaction obeys the relation t1/2 = 1/Ka____________________?

    A. First order
    B. Second order
    C. Third order
    D. Zero order