Which of the following processes involves absorption of energy ?a) Cl

1.	Which of the following processes involves absorption of energy ?a) Cl + e- →Cl-b) O- + e- →O2-c) O + e- →O-d) S + e- →S-
Answer» Correct option is b) O^- + e^- →O^2- As electron is being added to anion, whereas in all rest of three, electron is being added to a neutral atom which will not have as much repulsion as in case of O^-

Which of the following processes involves absorption of energy ?a) Cl + e- →Cl-b) O- + e- →O2-c) O + e- →O-d) S + e- →S-

Answer»

Correct option is b) O^- + e^- →O^2-

As electron is being added to anion, whereas in all rest of three, electron is being added to a neutral atom which will not have as much repulsion as in case of O^-

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Which of the following processes involves absorption of energy ?a) Cl + e- →Cl-b) O- + e- →O2-c) O + e- →O-d) S + e- →S-

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