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Q.

Statement - I : F - F bond has low bond dissociation energy
Statement - II : Fluorine has lower reactivity

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a

Both statements I and II are correct

b

Statement-I is incorrect and statement-II is correct

c

Both statements I and II are incorrect

d

Statement-I is correct and statement-II is incorrect

answer is C.

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Detailed Solution

Fluorine has a very small radius due to the positive protons which have a very strong attraction to the negative electrons, holding them closer to the nucleus than the bigger and less electronegative elements.
Due to which the F – F bond length is short.
Therefore, electrons lie very close to each other and very large electron-electron (Interelectronic) repulsions take place which weakens the bond.
Hence, the assertion is false but the reason is true

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Statement - I : F - F bond has low bond dissociation energyStatement - II : Fluorine has lower reactivity