For kinetic study of the reaction of iodide ion with H2O2 at room temperature:
(A) Always use freshly prepared starch solution.
(B) Always keep the concentration of sodium thiosulphate solution less than that of Kl 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 Kl solution.
Choose the correct answer from the options given below:
For kinetic study of the reaction of iodide ion with H2O2 at room temperature:
(A) Always use freshly prepared starch solution.
(B) Always keep the concentration of sodium thiosulphate solution less than that of Kl 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 Kl solution.
Choose the correct answer from the options given below:
Option 1 -
(A), (B), (C) only
Option 2 -
(A), (D), (E) only
Option 3 -
(D), (E) only
Option 4 -
(A), (B), (E) only
-
1 Answer
-
Correct Option - 1
Detailed Solution:Always fresh solution of starch used and recorded immediately after the blue colour appears. Na2S2O3 is used in limited amount.
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