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A first order reaction takes 69.3 min fo...

A first order reaction takes 69.3 min for 50% completion. The time required for 80% completion of this reaction is :

A

104 min

B

161 min

C

110.4 min

D

182 min

Text Solution

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The correct Answer is:
B
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MODERN PUBLICATION-MOCK TEST PAPER -2-MCQs
  1. For first order reaction, rate constant :

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  2. The pair of compounds in which both the metals are in the highest poss...

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  3. Which of the following statement is incorrect ?

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  4. Which of the following is a positively charged sol?

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  5. Which one of the following is an oxide ore ?

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  6. The vapour pressure of two liquids A and B in their pure states are i...

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  7. A first order reaction takes 69.3 min for 50% completion. The time req...

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  8. The hydrolysis of NCl3 by water produces :

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  9. Which one of the following shows highest magnetic moment?

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  10. The magnetic moment of the complex : K [Cr(H2O)2(C2O4)2].3H2O is :

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  11. The major products X and Y in the reaction :

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  12. IUPAC name of the complex K3[Fe(CN)6] is :

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  13. How many chiral compounds are possible on monochlorination of 2-methyl...

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  14. The correct order of reactivity of the following compounds towards S(...

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  15. Which of the following can reduce aldehydes to hydrocarbons ?

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  16. 5-oxohexanal is obtained by ozonolysis of :

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  17. Which of the following will not give a primary amine ?

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  18. Nylon is an example of :

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  19. Antiseptics and disinfectants either kill or prevent the growth of mic...

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  20. Deficiency of vitamin B, causes the disease :

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