Question

Photochemical fluorination is explosive while iodination is too slow to occur. The reason for this is
(A) Bond dissociation energy of I2 is minimum
(B) Formation of CH3 - F is most exothermic
(C) Formation of H-F is most exothermic while formation of H-1 is endothermic
(D) F, has lower bond dissociation energy than Cl2 or Br2
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Answer 1

Answer:

bond dissociation energy of I2 is minimum.

formation of CH3−F is most exothermic.

formation of H-F is most exothermic while formation of HI is endothermic.

F2 has lower bond dissociation energy than CI2 and Br2.

Answer 2

Answer:(C)

formation of H—F is most exothermic while formation of HI is endothermic

Explanation:

formation of H—F is most exothermic while formation of HI is endothermic