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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ck098

For , rate with . A run has and . Take and treat as constant. Select the correct statement(s).

  1. AIf is doubled, the half-life of becomes .
  2. BThe pseudo first order rate constant is .
  3. CThe half-life of is .
  4. DIf is halved, the half-life of becomes .

Answer: B, C, D

With in 600-fold excess, and . A pseudo first order half-life does not depend on , so doubling it changes nothing. Halving halves and doubles the half-life to 7.70 s.
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