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NEET2018ChemistryChemical KineticsActual

When initial concentration of the reactant is doubled, what happens to the half-life period of a zero order reaction?

Options

  1. AIt is tripled.
  2. BIt is doubled.
  3. CIt is halved.
  4. DIt remains unchanged.

Correct answer

B. It is doubled.

Step-by-step solution

Order of reaction = 0 Half lifer t 1 2   =   A 0 2 K t 1 2 ∝ A 0 ∴ Initial concentration doubled then half-life i.e t 1 2 becomes double

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