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NTA Abhyas NEET2020ChemistryChemical KineticsPractice

Calculate the amount of 53 I 128 ( t 1 / 2 = 25 m i n ) left after 75 minutes.

Options

  1. A1 / 4
  2. B1 / 6
  3. C1 / 8
  4. D1 / 9

Correct answer

C. 1 / 8

Step-by-step solution

N N 0 = 1 2 t t 1/2 ; N N 0 = 1 2 75 25 N = amount at time t t = total time N 0 = initial amount

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