Which of the following will have very high rate of reaction ?

Related Mcqs:

1. When the reaction completes in more than one steps rate of reaction will be determined by________________?

   A. Fast step
   B. Slowest step
   C. All steps
   D. Molecularity of the reaction

2. 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

3. Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

   A. Cl2O
   B. ClO2
   C. Cl2O6
   D. Cl2O7

4. Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?

   A. Displacement reaction
   B. Double displacement reaction
   C. Disproportionation reaction
   D. Reduction reaction

5. Energy of activation for backward reaction is less than forward reaction for ___________ reactio?

   A. Endothermic
   B. Exothermic
   C. Moderate
   D. Fast

6. The specific rate constant of a first order reaction depends on the________________?

   A. Time
   B. Concentration of the reactant
   C. Temperature
   D. Concentration of the product

7. Unit of rate of reaction is_________________?

   A. Moles dm-3 sec-1
   B. Moles dm-3
   C. Moles sec-1
   D. Mol-1 dm3 sec-1

8. Anything which increases rate of reaction without being involved in the reaction________________?

   A. Promoter
   B. Catalyst
   C. Inhibitor
   D. All of the above

9. On increasing the temperature the rate of reaction increases mainly because_________________?

   A. The activation energy of the reaction increases
   B. Concentration of the reacting molecules increases
   C. Collision frequency increases
   D. None of these

10. Rate of reaction when concentration of reactants are taken as unity is called_________________?

    A. Arrhenius constant
    B. Molecularity
    C. Specific rate constant
    D. Ideal rate constant