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Standard XII

Chemistry

Oxidising Reagent and Reducing Reagent

Assertion :A ...

Question

Assertion :A reaction between $F e$ and $I_{2}$ occurs, but a reaction between ${F e}^{2 +}$ and $I^{⊖}$ does not occur. Reason: $F e$ is a better reducing agent than $I^{⊖}$ .

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$I_{2} + F e ⟶ {F e}^{2 +} + 2 I^{⊖}$
$I^{⊖} + {F e}^{2 +} ⟶$ No reaction
The oxidation potential of $F e / {F e}^{2 +}$ is greater than the oxidation potential of $2 I^{⊖} / I_{2}$ .

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Similar questions

Q. Assertion :A reaction between

F e

and

I_{2}

occurs but a reaction between

{F e}^{2 +}

and

I^{⊖}

does not occur. Reason:

F e

is a better reducing agent than

I^{⊖}

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

Assertion (A) Ethanol is a weaker acid than phenol.
Reason (R) Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Assertion :A reaction between Fe and I2 occurs, but a reaction between Fe2+ and I⊖ does not occur. Reason: Fe is a better reducing agent than I⊖.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionI2+Fe⟶Fe2++2I⊖I⊖+Fe2+⟶ No reactionThe oxidation potential of Fe/Fe2+ is greater than the oxidation potential of 2I⊖/I2.

Assertion :A reaction between $F e$ and $I_{2}$ occurs, but a reaction between ${F e}^{2 +}$ and $I^{⊖}$ does not occur. Reason: $F e$ is a better reducing agent than $I^{⊖}$ .