IUPAC nomenclature

28 questions on IUPAC nomenclature from the Coordination Compounds chapter: 5 NEET level, 11 JEE Main, 12 JEE Advanced. Each one opens with its answer and solution.

• 0.010 mol of a cobalt(III) salt of empirical formula CoCl3.4NH3 (coordination number 6) gives 1.435 g of AgCl with excess AgNO3 (Ag = 108, Cl = 35.5). Its IUPAC... JEE Advanced level
• The formula of pentaamminenitrito-N-chromium(III) sulfate is JEE Main level
• The diamagnetic complex Na2[Fe(CN)5(NO)] is named by treating NO as NO+. Its IUPAC name is JEE Advanced level
• The correct IUPAC name of the square planar complex [Pt(NH3)(py)ClBr] (py = pyridine) is JEE Main level
• Which ligand name is paired correctly with its formula according to the current IUPAC recommendations? NEET level
• Match the species in Column I with the oxidation state of the metal in Column II. Column I: P [Fe(CN)6]^4-; Q [Ni(CO)4]; R [V(CO)6]^-; S [Cr(NH3)5Cl]^2+. Column... JEE Main level
• Compound [Co(NH3)5Br]SO4 gives a white precipitate with BaCl2 and none with AgNO3. Its ionisation isomer Y gives no precipitate with BaCl2 but a pale yellow pre... JEE Advanced level
• The correct IUPAC name of [Co(NH3)6]Cl3 is NEET level
• The correct IUPAC name of [Co(NH3)4(H2O)Cl]Cl2 is JEE Main level
• [Co(NH3)6][Cr(CN)6] is a coordination isomer of [Cr(NH3)6][Co(CN)6]. The IUPAC name of the first compound is JEE Advanced level
• The correct IUPAC name of Na2[Zn(OH)4] is NEET level
• The oxidation state and coordination number of chromium in [Cr(en)2(C2O4)]^+ are respectively (en is neutral and bidentate; oxalate is 2- and bidentate) JEE Main level
• Molar conductivity of PtCl4.4NH3 (Pt coordination number 6) corresponds to three ions per formula unit. Its IUPAC name is JEE Advanced level
• The coordination number of chromium in [Cr(en)3]Cl3 is (en = ethane-1,2-diamine, a bidentate ligand) NEET level
• A complex K_x[Fe(CN)6] contains iron in the +2 or +3 state and has a spin-only moment of 1.73 BM (CN- is strong field). Its IUPAC name is JEE Advanced level
• In the brown-ring complex [Fe(H2O)5(NO)]^2+ take the nitrosyl ligand as NO+. The oxidation state of iron is JEE Main level
• Match each species in Column I with the d-electron count of its metal in Column II. Column I: P [Fe(CN)6]^4-; Q [Cr(NH3)6]^3+; R [Cu(NH3)4]^2+; S [Ag(NH3)2]^+. ... JEE Advanced level
• Assertion (A): In complexes, NH3 as a ligand is named 'ammine' with double m. Reason (R): The ligand CH3NH2 is also named 'ammine' in complexes. JEE Main level
• The correct IUPAC name of [Co(NH3)5(ONO)]Cl2, in which nitrite is bonded through oxygen, is JEE Main level
• Select the correct IUPAC names. JEE Main level
• For the hydrate isomers [Cr(H2O)6]Cl3, [Cr(H2O)5Cl]Cl2.H2O and [Cr(H2O)4Cl2]Cl.2H2O, select the correct statements. JEE Advanced level
• Reinecke's salt is named ammonium diamminetetrakis(thiocyanato-kappa N)chromate(III). Its formula is JEE Advanced level
• The oxidation state of cobalt in the complex ion [Co(NH3)5Cl]^2+ is NEET level
• 0.100 mol of CrCl3.4H2O (Cr coordination number 6) gives 14.35 g of AgCl with excess AgNO3 (Ag = 108, Cl = 35.5). The IUPAC name of the complex and the number o... JEE Advanced level
• The correct IUPAC name of [Co(en)2Cl2]Cl (en = ethane-1,2-diamine) is JEE Main level
• Select the correct IUPAC names. JEE Advanced level
• In which of the following does the metal have an oxidation state of +3? JEE Main level
• An octahedral complex K_x[CrF6] has chromium in the +2 or +3 state, F- is a weak-field ligand, and the spin-only moment is 4.90 BM. The formula and name are JEE Advanced level