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Formation of NaF takes place in the foll...

Formation of NaF takes place in the following steps. Identify which step/steps is/are exothermic (energy released) in nature?
I. `Na_((g))toNa_((g))^(+)+e^(-)`
II. `F_((g))+e^(-)toF_((g))^(-)`
III. `Na_((g))^(+)+F_((g))^(-)toNaF_((s))`

A

I only

B

II only

C

I and III only

D

II and III only

Text Solution

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The correct Answer is:
D
II and III only
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