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Which of the following will have three s...

Which of the following will have three stereoisomeric forms?
(i) `[Cr(NO_(3))_(3)(NH_(3))_(3)]`
(ii) `K_(3)[Co(C_(2)O_(4))_(3)]`
(iii) `K_(3)[CoCl_(2)(C_(2)O_(4))_(2)]`
(iv) `[CoBrCl(en)_(2)]`

A

iii, iv

B

I, ii and iv

C

Only iv

D

All

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The correct Answer is:
A
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Name the following complexes according to the IUPAC system of nomenclature. (i) [Co(NH_(3))_(4)(H_(2)O)Br](NO_(3))_(2) (ii) Na[Au(CN)_(2)] (iii) Na_(3)[Fe(C_(2)O_(4))_(3)] (iv) (Co(en)_(3)]Cl_(3) (v) [(NH_(3))_(5) Cr-OH - Cr(NH_(3))_(5)]Cl_(5) (vii) Ni(CO)_(2)(PPh_(3))_(2) (vii) TiCl_(4)(Et_(2)O)_(2) (ix) Fe(C_(5)H_(5))_(2) (x) NaMn(CO)_(5) (xi) CoCl_(2)(C_(4)H_(8)O_(2)N_(2))_(2)

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