Select the correct statement. \( \mathrm{P} \) (1) Complexes are highly stable when they have W ...

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Select the correct statement.
\( \mathrm{P} \)
(1) Complexes are highly stable when they have
W
five and six membered ring
(2) Greater the charge on the central metal cation, greater the value of \( \Delta(\mathrm{CFSE}) \)
(3) In complex ion \( \left[\mathrm{CoF}_{6}\right]^{3-}, \mathrm{F}^{-} \)is a weak field ligand, so that \( \Delta_{\text {oct }}\mathrm{P} \) (Pairing energy) and it is low spin complex.
(4) \( \left[\mathrm{CoCl}_{2}\left(\mathrm{NH}_{3}\right)_{2}(\mathrm{en})\right]^{\oplus} \) complex ion will have four optical isomers
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