Published by:
CGP EDU Academic Team
Published on: August 14, 2026
When O 2 is adsorbed on a metallic surface, electron transfer occurs from the metal to O 2 . The TRUE statement(s) regarding this adsorption is(are)
A
O 2 is physisorbed
B
heat is released
C
occupancy of 
of O 2 is increased
of O 2 is increased
D
bond length of O 2 is increased
Text Solution
Verified by ExpertsThe correct answer is:
B
(b,c,d)* Adsorption of O 2 on metal surface is exothermic.
* During electron transfer from metal to O 2 electron occupies 
orbital of O 2 .
* Due to electron transfer to O 2 the bond order of O 2 decreases hence bond length increases.
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