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At 27^@C in the presence of a catalyst, ...

At `27^@C` in the presence of a catalyst, the activation energy of a reaction is lowered by 10 kJ `mol^-1`. The ratio of log k (catalyst)/k (uncatalysed) is

A

1.741

B

191.47

C

0.034

D

0.0145

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MODERN PUBLICATION-CHEMICAL KINETICS-EXERCISE
  1. For a first order reaction, the plot of log K versus 1/T gives straigh...

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  2. The pre-expotential factor in Arrhenius equation of a second order rea...

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  3. At 27^@C in the presence of a catalyst, the activation energy of a rea...

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  4. The rate of a chemical reaction becomes double for every 10^@C rise in...

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  5. Fill in the blanks- is a mixture of and is used as an explosive.

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  6. What is the fraction of molecules having energy equal to or greater th...

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  7. The questions given below consist of an Assertion and a Reason. Use th...

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  8. Higher-order (n > 3) reactions are rare due to:

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  9. True or False : The half life Period for a first order reaction is ind...

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  10. Fill in the blanks- is an alloy which is used in the manufacture of l...

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  11. Assertion : For a second order reaction, graph of [A] vs. t is a strai...

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  12. Molecularity of a reaction cannot be zero.

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  13. A catalyst increases the rate of a reaction by:

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  14. Assertion : The molecularity of the reaction H2 + Br2 rarr 2HBr is 2....

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  15. Assertion : For the reaction : RCl + NaOH (aq) rarr ROH + NaCl, the ra...

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  16. Which subatomic particle was discovered by : (i) Chadwick (ii) Tho...

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  17. Match the units in Column I with the type of reaction in Column II

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  18. Name the subatomic particle whose relative charge is : (a) +1

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  19. The answer to each of the following question is a single- digit- integ...

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  20. For a reaction : 2Ararr A2 the rate of reaction becomes 27 times when ...

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