Write I.U.P.A.C. names of the following:
(i) \([Co(NH_3)_6]Cl_3\)
(ii) \([Ti(H_2O)_6]^{3+}\)
(iii) \( K_2[Ni(CN)_4] \)
(iv) \([Pt(NH_3)_2Cl_2]\)
Step 1: Identify the ligands, oxidation state, and coordination number.
Step 2: The correct IUPAC names are:
(i) Hexaamminecobalt(III) chloride
(ii) Hexaaquatitanium(III) ion
(iii) Potassium tetracyanonickelate(II)
(iv) Diammine dichloroplatinum(II)
Explain by giving the example of chlorobenzene that chlorine is ortho- and para-directing in electrophilic aromatic substitution reactions.