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Chemical Kinetics and Nuclear Chemistry question

2022 · 28 Jul · Shift 1 · Q13
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Chemical Kinetics and Nuclear Chemistry question

2022 · 28 Jul · Shift 1 · Q13

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1
For kinetic study of the reaction of iodide ion with H2O2\mathrm{H}_{2} \mathrm{O}_{2}H2​O2​ at room temperature : (A) Always use freshly prepared starch solution. (B) Always keep the concentration of sodium thiosulphate solution less than that of KI solution. (C) Record the time immediately after the appearance of blue colour. (D) Record the time immediately before the appearance of blue colour. (E) Always keep the concentration of sodium thiosulphate solution more than that of KI solution. Choose the correct answer from the options given below :
  1. A
    (A),(B),(C)(\mathrm{A}),(\mathrm{B}),(\mathrm{C})(A),(B),(C) only
  2. B
    (A),(D),(E)(\mathrm{A}),(\mathrm{D}),(\mathrm{E})(A),(D),(E) only
  3. C
    (D),(E)(\mathrm{D}),(\mathrm{E})(D),(E) only
  4. D
    (A),(B),(E)(\mathrm{A}),(\mathrm{B}),(\mathrm{E})(A),(B),(E) only
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