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Which is correct electronic configuration for \( \mathrm{C}_{2} \) molecule according to M.O.T.
(W)
(1) \( \mathrm{KK}(\sigma 2 \mathrm{~s})^{2}\left(\sigma^{*} 2 \mathrm{~s}\right)^{2}\left(\pi 2 \mathrm{Px}^{2}=\pi 2 \mathrm{Py}^{2}\right) \)
(2) \( \mathrm{KK}\left(\sigma 2 \mathrm{~s}^{2}\right)\left(\sigma^{*} 2 \mathrm{~s}\right)^{2}\left(\pi 2 \mathrm{Px}^{1}=\pi 2 \mathrm{Py}^{1}\right) \sigma 2 \mathrm{Pz}^{2} \)
(3) \( \mathrm{KK}\left(\sigma^{*} 2 \mathrm{~s}^{2}\right)(\sigma 2 \mathrm{~s})^{2}\left(\pi 2 \mathrm{Px}^{2}=\pi 2 \mathrm{Py}^{2}\right) \)
(4) \( \mathrm{KK}\left(\sigma 2 s^{2}\right)\left(\sigma^{*} 2 s^{2}\right)^{2} \sigma 2 \mathrm{Pz}^{2}\left(\pi 2 \mathrm{Px}^{1}=\pi 2 \mathrm{Py}^{1}\right) \)
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