AIIMS 2018 Chemistry Reactivity of Halogens Assertion Reason Question
Assertion: F₂ and Cl₂ when passed through water, F₂ is more reactive. Reason: F₂ is most electronegative.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Option B is correct because while both the assertion and reason are true—F₂ is indeed more reactive than Cl₂ when passed through H₂O, and F₂ is the most electronegative element—the reason provided does not directly explain the assertion. The high reactivity of F₂ in water is primarily due to its ability to form strong bonds and its tendency to displace other halogens, rather than its electronegativity alone. Option A is incorrect because, although both statements are true, the reason does not adequately explain the assertion. Options C and D are incorrect as they misrepresent the truth of the statements regarding F₂ and Cl₂.
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