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Choose the correct code regarding, possible number of geometrical isomers exhibited by following complexes :
\( \mathrm{P} \)
(I) \( \left[\mathrm{CrCl}_{2}\left(\mathrm{NO}_{2}\right)_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]^{-} \)
(II) \( \left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right] \)
(III) \( \left[\mathrm{PtCl}\left(\mathrm{NO}_{2}\right)\left(\mathrm{NH}_{3}\right)(\mathrm{py})\right] \)
(IV) \( [\mathrm{PtBrCl}(\mathrm{en})] \)
(I) (II) (III) (IV)
(I) (II) (III) (IV)
(d) \( 5 \quad 2 \quad 3 \quad 0 \)
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