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Chemical Kinetics and Nuclear Chemistry question

2021 · Shift 2 · Q3
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Chemical Kinetics and Nuclear Chemistry question

2021 · Shift 2 · Q3

JEE AdvancedChemistryChemical Kinetics and Nuclear ChemistryMultiple correct+4 / −2
For the following reaction, 2X+Y→kP2X + Y\xrightarrow{k} P2X+Yk​P the rate of reaction is d[P]dt=k[X]{{d[P]} \over {dt}} = k[X]dtd[P]​=k[X]. Two moles of X are mixed with one mole of Y to make 1.0 L of solution. At 50 s, 0.5 mole of Y is left in the reaction mixture. The correct statement(s) about the reaction is(are) (Use : ln 2 = 0.693)
  1. A
    The rate constant, k, of the reaction is 13.86 ×\times× 10 −-− 4 s −-− 1
  2. B
    Half-life of X is 50 s.
  3. C
    At 50 s, −d[X]dt-{{d[X]} \over {dt}}−dtd[X]​= 13.86 ×\times× 10 −-− 3 mol L −-− 1 s −-− 1.
  4. D
    At 100 s, −d[Y]dt-{{d[Y]} \over {dt}}−dtd[Y]​= 3.46 ×\times× 10 −-− 3 mol L −-− 1 s −-− 1.
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