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The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is
Options
(a) 0
(b) 1
(c) 2
(d) 3
Correct Answer:
3
Explanation:
t(1/2) = ∝ 1 / a² .
We know that t(1/2) ∝ 1/ a (n-1),
⇒ a² = a (n-1) or n -1 = 2 ⇒ n = 3.
Thus reaction is of third order.
Related Questions: - In the reaction : 2N₂O₅ → 4NO₂ + O₂, initial pressure is 500 atm and rate
- Oxidation numbers of P in PO₄³⁻, of S in SO₄²⁻ and that of Cr in Cr₂O₇²⁻
- Benzenamine reacts with excess bromine to produce
- Which of the following metal is not manufactured by electrolysis
- At what temperature, the rms velocity of gas shown at 50⁰C will be doubled
Topics: Electrochemistry and Chemical Kinetics
(87)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the reaction : 2N₂O₅ → 4NO₂ + O₂, initial pressure is 500 atm and rate
- Oxidation numbers of P in PO₄³⁻, of S in SO₄²⁻ and that of Cr in Cr₂O₇²⁻
- Benzenamine reacts with excess bromine to produce
- Which of the following metal is not manufactured by electrolysis
- At what temperature, the rms velocity of gas shown at 50⁰C will be doubled
Topics: Electrochemistry and Chemical Kinetics (87)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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