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Aarushi Mitesh Kohli
Asked: 2022-11-09T22:41:05+05:30 In:

Which of the following is not correct ?
A. Iodine oxidises sodium thiosulphate to sodium tetrathionate
B. Sodium thiosulphate is soluble in water
C. Ozone is used to identify the presence of unsaturation in alkene
D. Sodium thiosulphate reacts with iodine to form sodium sulphate.

Which of the following is not correct ?
A. Iodine oxidises sodium thiosulphate to sodium tetrathionate
B. Sodium thiosulphate is soluble in water
C. Ozone is used to identify the presence of unsaturation in alkene
D. Sodium thiosulphate reacts with iodine to form sodium sulphate.
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1 Answer

  1. Correct Answer – D
    `I_(2)` reacts with `Na_(2)S_(2)O_(3)` to give sod tetrathionate
    `I_(2)+2Na_(2)S_(2)O_(3)rarrNa_(2)S_(4)O_(6)+2NaI`
    In this reaction `I_(2)` acts as an oxidising agent.

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