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Which one of the following processes pro...

Which one of the following processes proceeds with the absorption of energy? `F(g)+e^(-) rarr F^(-) (g)`, `F(g)+e^(-) rarr F^(-) (g)`, `O(g)+e^(-) rarr O^(-)(g)`, `Cl(g)+e^(-) rarr Cl^(-) (g)`

A

F(g)+e^- rarr F^-(g)'

B

O^-(g)+e^- rarr O^(2-) .(g)'

C

O(g)+e^- rarr . O^-(g)'

D

Cl(g)+e^- rarr Cl^-(g)'

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The correct Answer is:
B
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V PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
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  11. Which of the following grouping represents a collection of isoelectron...

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  13. Which of the following ions has the highestvalue of ionic radius?

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  18. elements with atomic no '9,17,35,53' and 85 are all

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