Which of the following statement is correct? \( \mathrm{P} \) (1) E...

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Which of the following statement is correct?
\( \mathrm{P} \)
(1) Electron gain enthalpy may be positive for some
W. elements.
(2) Second electron gain enthalpy always remains positive for all the elements.
(3) \( \Delta_{\mathrm{eg}} \mathrm{H}\left(\mathrm{K}^{+}\right)=-\mathrm{IE}(\mathrm{K}) \)
(4) All of these
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