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Which of the following processes involves absorption
\( \mathrm{P} \)
of energy?
W
(1) \( \mathrm{S}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{S}^{-}(\mathrm{g}) \)
(2) \( \mathrm{S}^{-}+\mathrm{e}^{-} \rightarrow \mathrm{S}^{2-}(\mathrm{g}) \)
(3) \( \mathrm{Cl}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{Cl}^{-}(\mathrm{g}) \)
(4) None of these
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