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Which of the following comments are true...

Which of the following comments are true -

A

for a complex reaction , the fastest step is the rate- determining step

B

for most reactions , a rise in temperature by `10^(@)C` leads to almost a 2 fold increase in the rate of reaction

C

in a reaction , collisions among reactant molecules with energy greater than threshold energy lead to product formation

D

for a zero order reaction , half-life is directly proportional to the initial concentration of reactant

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The correct Answer is:
B, D
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CHHAYA PUBLICATION-CHEMICAL KINETICS-MCQ HOTSPOT (More Than One Correct Type )
  1. Factors which affect rate constant of a reaction are -

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  2. The rate constants of some reactions are given below : (i) k=1.2xx...

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  3. The experimental rate equation for the reaction, CO(g)+Cl(2)(g)rarrCOC...

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  4. aA+bBrarr Products . In the reaction , initial concentrations of the r...

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  5. Which of the following comments are incorrect-

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  6. At 25^(@)C , the activation energies for a reaction in absence and pre...

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  7. In acidic medium , hydrolysis of CH(3)COOC(2)H(5) occurs according to...

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  8. For the reaction , A rarr P, the value of the rate constant (k) is fo...

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  9. Which of the following relations are not true -

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  10. In case of first order reaction -

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  11. Which of the following comments are true -

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  12. For the reaction , RCl+NaOHrarrROH+NaCl the rate law is : Rate = k [R...

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  13. Which of the following graphs are the correct representations for the ...

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  14. The rate law for the reaction involving BrO(3)^(-) and Br^(-) in acid ...

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  15. Which of the following statements with regard to the role of a catalys...

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  16. The correct relations for a first order reaction are -

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  17. The correct forms of Arrhenius equation are -

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  18. Which of the following correct comments about a zero order reaction ar...

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