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

Related Mcqs:

1. At start of reaction the concentration of reactants is_______________?

   A. high
   B. low
   C. according to Kc
   D. constant

2. In rate expression the concentration of reactants is negative. It shows_______________?

   A. Concentration of reactant does not change
   B. Concentration of product increases
   C. Concentration of reactant decreases
   D. Concentration of reactant increases

3. Rate of enzymatic reaction is directly proportional to the concentration of___________________?

   A. Enzyme
   B. Substrate
   C. Enzyme and substrate
   D. Enzyme and product

4. When sparingly soluble salt is in equilibrium with molar concentration of its oppositely charged ion when the product is called_________________?

   A. common ion effect
   B. solubility product
   C. dissociation constant
   D. dissociation constant for an acid

5. 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

6. When catalysts and reactants are in more than one phase it is________________?

   A. Homogeneous catalysis
   B. Heterogeneous catalysis
   C. Catalysis
   D. Ea

7. 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

8. Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?

   A. formaldehyde
   B. ketone
   C. ethylene epoxide
   D. both A & C

9. 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

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

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