Problem 1
Which of the following is a complex salt? (a) \(\mathrm{KCl} \cdot \mathrm{MgCl}_{2} \cdot 6 \mathrm{H}_{2} \mathrm{O}\) (b) \(\mathrm{FeSO}_{4} \cdot\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4} \cdot 6 \mathrm{H}_{2} \mathrm{O}\) (c) \(4 \mathrm{KCN} \cdot \mathrm{Fe}(\mathrm{CN})\) (d) \(\mathrm{K}_{2} \mathrm{SO}_{4} \cdot \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3} \cdot 24 \mathrm{H}_{2} \mathrm{O}\)
Problem 2
The number of ions formed on dissolving one molecule of \(\mathrm{FeSO}_{4}\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4} \cdot 6 \mathrm{H}_{2} \mathrm{O}\) are (a) 3 (b) 4 (c) 5 (d) 6
Problem 4
EDTA is a ....... ligand. (a) tetradentate (b) hexadentate (c) bidentate (d) tridentate
Problem 5
Diethylenetriamine is a (a) chelating agent (b) polydentate ligand (c) tridentate ligand (d) all of these
Problem 7
The correct name of the compound \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]\left(\mathrm{NO}_{3}\right)_{2}\) according to system is (a) tetraamminecopper(II) dinitrite (b) tetraamminecopper(II) nitrite (c) cuprammonium nitrate (d) tetramminecopper(II) nitrate
Problem 8
Which of the following complex species does not involve inner orbital hybridization? (a) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\) (b) \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
Problem 10
Pentaamminenitrocobalt (III) cation possesses the property of (a) physiosorption (b) chirality (c) linkage isomerism (d) versatile reducing agent
Problem 11
The anion \(\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\) involves which type of hybridization? (a) \(\mathrm{d}^{2} \mathrm{sp}^{3}\) (b) sp \(^{3} \mathrm{~d}^{2}\) (c) \(\mathrm{d}^{3} \mathrm{sp}^{2}\) (d) \(\mathrm{sp}^{2} \mathrm{~d}^{3}\)
Problem 12
The correct IUPAC name of \(\mathrm{KAl}\left(\mathrm{SO}_{4}\right)_{2} .12 \mathrm{H}_{2} \mathrm{O}\) is (a) aluminium potassium sulphate-12-water (b) potassium aluminium(III) sulphate-12-water (c) potassium aluminium(III) sulphate hydrate (d) aluminium(III) potassium sulphate hydrate-12
Problem 13
Atomic numbers of \(\mathrm{Cr}\) and \(\mathrm{Fe}\) are respectively 25 and 26\. Which of the following is paramagnetic due to the spin of the electron? (a) \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\) (b) \(\left[\mathrm{Fe}(\mathrm{CO})_{5}\right]\) (c) \(\left[\mathrm{Cr}(\mathrm{CO})_{6}\right]\) (d) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4}\)
