Assertion -In the reaction- 2S2O32- - I2- S4O62- - 2I- I2 is oxidised- Reason- During oxidation- loss of electron takes place-

The correct option is D Assertion is incorrect but Reason is correct 2S_2O_3^2 + I_2→ S_4O_6^2 + 2I^ In the given equation #160; the oxidation state o ...

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Standard XII

Chemistry

Stoichiometry

Assertion :In...

Question

Assertion :In the reaction, $2 S_{2} O_{3}^{2 -} + I_{2} \to S_{4} O_{6}^{2 -} + 2 I^{-}; I_{2}$ is oxidised. Reason: During oxidation, loss of electron takes place.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is D Assertion is incorrect but Reason is correct
$2 S_{2} O_{3}^{2 -} + I_{2} \to S_{4} O_{6}^{2 -} + 2 I^{-}$
In the given equation the oxidation state of iodine is changed from zero to -1, that is a gain of electrons takes place which is the reduction. Means iodine is reduced, as gain of electrons is oxidation and loss of electrons is reduction.

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Assertion :In the reaction, 2S2O2−3+I2→S4O2−6+2I−;I2 is oxidised. Reason: During oxidation, loss of electron takes place.

Assertion :In the reaction, $2 S_{2} O_{3}^{2 -} + I_{2} \to S_{4} O_{6}^{2 -} + 2 I^{-}; I_{2}$ is oxidised. Reason: During oxidation, loss of electron takes place.