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

Related Mcqs:

1. Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?

   A. Graham’s Law
   B. Gay-Lussac’s law
   C. Boyle’s law
   D. None of these

   Submitted by: Malik Asghar Hussain

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

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

3. 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

4. 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

5. 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

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

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

7. 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

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

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

9. 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

10. 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