Non-stoichiometric compounds of transition elements are called___________________?

A. Hydrates
B. Hydrides
C. Binary compounds
D. Interstitial compounds

The specie which donates electrons to central metal atom in coordination sphere is called____________________?

A. Anion
B. Cation
C. Ligand is positively charged
D. Acid

Which of the following can form a chealate______________________?

A. Ammine
B. Oxalato
C. Carbonyl
D. Cyano

The compound or complex ion which has a ring in its structure__________________?

A. Polydentate ligand
B. Chelate
C. Monodentate ligand
D. Hydrate

Geometry of the complex compounds usually depends upon __________________?

A. Type of ligands
B. Types of hybridization in the elements of ligands
C. Hybridization of central metal
D. All of above

In pig iron the concentration of C-atom is ___________________?

A. 0.12 — 0.25%
B. 2.5 — 4.5%
C. 2.0 — 4.0%
D. 0.25 — 2.5%

With impurities like P and S the open hearth furnace is lined with ?

A. Sio2
B. Fe2o3
C. Feo
D. Cao mgo

The reduction potential Zn is_________________?

A. 0.76
B. -0.76
C. -0.55
D. 0.55

Coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is____________________?

A. 2
B. 6
C. 4
D. 8

The oxidation number of central metal atom in [Ni(CO)4] is_________________?

A. 0
B. 2
C. 4
D. 6