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Standard XII
Chemistry
Question

Assertion :Fluorine is most electronegative element. Reason: Fluorine can form only ionic bond.
  1. Both Assertion and Reason are true and Reason is the correct explanation for Assertion
  2. Both Assertion and Reason are true but Reason is not the correct explanation for Assertion
  3. Assertion is true statement but Reason is false
  4. Both Assertion and Reason are false statement.

A
Both Assertion and Reason are true and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are true but Reason is not the correct explanation for Assertion
C
Assertion is true statement but Reason is false
D
Both Assertion and Reason are false statement.
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Solution
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  • 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.
  • Hence option B is correct answer.

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