4.Both geometrical and optical isomerism are shown by A) "[co(en)_(2)Cl_(2)]^(+)," B) "[Co(NH_(3))_(5)Cl]^(+2)],[" C) "[Co(C_(2)O_(4))_(3)]^(-3)," D) "[Co(en)_(3)]^(+3)

Draw all the isomers (geometrical and optical) of: (i) [CoCl_(2)(en)_(2)]^(+) (ii) [Co(NH_(3))Cl(en)_(2)]^(2+) (iii) [Co(NH_(3))_(2)Cl_(2)(en)]^(+)

Which type of isomerism is shown by [Co(NH_(3))_(4)Br_(2)]Cl

Which of the following isomerism is/are not shown by the complex [Co(Cl_(2)(OH)_(2)(NH_(3))_(2)]Br?

What is the coordination number and the oxidation state of the metal in each of the following complexes ? (a) [AgCl_(2)]^(-)," " (b) [Cr(H_(2)O)_(5)Cl]^(2+)," " ( c) [Co(NCS)_(4)]^(2-) (d) [Co(NH_(3))_(3)(NO_(2))_(3)]," ": (e ) [Fe(EDTA)]^(-)," " (f) [Cu(en)_(2)]SO_(4) (g) K[Pt(NH_(3))Cl_(5)]

Draw the structure of optical isomers of (i) [PtCl_(2)(en)_(2)]^(2+) (ii). [Cr(NH_(3))_2 Cl_(2)(en)]^(+)

When one mole of CoCl_(3).5NH_(3) was treated with excess of silver nitrate solution, 2 mol of AgCl was precipitated. The formula of the compound is: (a) [Co(NH_(3))_(5)Cl_(2)]Cl (b) [Co(NH_(3))_(5)Cl]Cl_(2) (c) [Co(NH_(3))_(4)Cl_(2)](NH_(3))Cl (d) [Co(NH_(3))_(3)Cl_(3)](NH_(3))_(2)

Which of the following complexes show geometrical as well as optical isomerism ? (i) [Cr(o x)_(3)]^(3-) (ii) [Rh (e n)_(2)Cl_(2)]^(+) (iii) [Co(NH_(3))_(2)Cl_(2)(e n)]^(+) Select the correct code

Among (a) -(d) the complexes that can display geometical isomerism are : (a) [Pt(NH_(3))_(3)Cl]^(+) (b) [Pt(NH_(3))Cl_(5)]^(-) (c) [Pt (NH_(3))_(2)Cl(NO_(2))] (d) [Pt(NH_(3))_(4)CIBr]^(2+)

Among the following optical activity is possible in (a) [Co(H_(2)O)_(2)(NH_(3))_(3)CI]^(o+) (b) [Co(H_(2)O))_(4)CI_(2)]^(o+)] (c ) [Co(NH_(3))_(4)(NO_(2))CI]^(o+) (d) [Co(CN)_(5)NC]^(Θ) .

IUPAC name [Co(NH_(3))_(5)(NO_(2))]Cl_(2) is