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.Management Sciences
Category: Transition Elements
The specie which donates electrons to central metal atom in coordination sphere is called____________________?
0
A. anion
B. cation
C. Ligand is positively charged
D. acid
The correct electronic configuration of Cr is____________________?
A. [Ar]4s23d4
B. [Ar] 4s23d4
C. [Ar]4s03d5
D. [Ar]4s13d5
With impurities like P and S the open hearth furnace is lined with ?
A. SiO2
B. Fe2O3
C. FeO
D. CaO MgO
Non-stoichiometric compounds of transition elements are called___________________?
A. hydrates
B. hydrides
C. binary compounds
D. interstitial compounds
The compound or complex ion which has a ring in its structure__________________?
A. polydentate ligand
B. chelate
C. monodentate ligand
D. hydrate
When a compound of transition element is dissolved in a solution of salt then it produces____________________?
A. simples ions
B. complex ions
C. double salts
D. strong anions
The melting points and boiling points upto meddle of 3d- series ____________________?
A. increases
B. decreases
C. remain same
D. no regular trend
In the production of wrought iron Mg Si and P are removed in the form of___________________?
A. oxides
B. silicates
C. slag
D. carbonates
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