NEET Chemistry Chemical Kinetics Questions Solved


The rate constant for a second order reaction is 8x10-5 M-1 min-1 . How long will it take a 1M solution to be reduced to 0.5M?

(a) 8.665 x 103 minute

(b) 8 x 10-5 minute

(c) 1.25 x 104 minute

(d) 4x10-5 minute

(c) For II order, t = (1/Ka) x/(a-x)

      t = 1/8x10-5x1(0.5/0.5)

      = 1.25x104 minute 

Difficulty Level:

  • 15%
  • 14%
  • 62%
  • 10%
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