Assertion :Fluorine is most electronegative element. Reason: Fluorine can form only ionic bond.
A
Both Assertion and Reason are true and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are true but Reason is not the correct explanation for Assertion
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C
Assertion is true statement but Reason is false
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D
Both Assertion and Reason are false statement.
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Solution
The correct option is B Both Assertion and Reason are true but Reason is not the correct explanation for Assertion
Fluorine is the most electronegative element because it has 5 electrons in it's 2p shell. The optimal electron configuration of the 2p orbital contains 6 electrons, so since Fluorine is so close to ideal electron configuration, the electrons are held very tightly to the nucleus.