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12th Standard English Medium Chemistry Subject Chemical Kinetics Creative 5 Mark Questions with Solution Part - I Question Bank Software Jun-21 , 2021

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12th Standard English Medium Chemistry Subject Chemical Kinetics Creative 5 Mark Questions with Solution Part - I

12th Standard English Medium Chemistry Subject Chemical Kinetics Creative 5 Mark Questions with Solution Part - I

12th Standard

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Chemistry

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25

  1. A first order reaction laws on rate constant 1.15 x 10-3 S-1. How long will 5 g of this reactant take to reduce to 3g?

  2. Reaction is first order in A and second in B.
    (i) Write the different rate equation.
    (ii) How is the rate affected on increasing the concentration of B three times?
    (iii) How is the rate affected when the concentrations of both A and B are doubled?

  3. Rate constant of a first order reaction is 0.45 sec-1, calculate its half life.

  4. If 30% of a first order reaction is completed in 12 mins, what percentage will be completed in 65.33 mins?

  5. The half life period of first order reactions is 10 mins. What percentage of the reactant will remain after one hour?

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