Assertion :Iodine shows oxidation state of $+ 1$ and $+ 3$ in the compounds ICl and $I C l_{3}$ respectively. Reason: Iodine coming below the halogens F, Cl and Br in the halogen group of elements in the periodic table shows a higher degree of electropositive nature.

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
As we move down the group electronegativity of element decreases as the size of element increases. $C l$ is more electronegative than $I$ so oxidation state of iodine in $I C l$ is +1 and in $I C l_{3}$ is +3.
Both assertion and reason are correct and reason is correct explanation for assertion.

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