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.Management Sciences
Category: Transition Elements
K2 (Cu(CN)4) which one is correct___________________?
A. Potassium tetra cyano cupperate
B. Co-ordination number is 2
C. Ligand is positively charged
D. Central atom is present in avionic sphere
Group VIB of transition elements contains___________________?
A. Zn Cd Hg
B. Fe Ru Os
C. Cr Mo W
D. Mn Te Re
Which of the following can form a chealate______________________?
A. ammine
B. oxalato
C. carbonyl
D. cyano
Pure metal__________________?
A. corrode slowly
B. corrode rapidly
C. does not corrode easily
D. none of these
When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in______________________?
A. orbitals of f-subshell
B. orbitals of d-subshell
C. orbitals of p-subshell
D. both A & B
The oxidation state of transition elements is usually _______________________?
A. variable
B. constant
C. single
D. infinite
Any process of chemical decay of metals due to the action of surrounding medium is called__________________?
A. activation
B. enameling
C. corrosion
D. coating
When an active metal like Al comes in contact with less active element like Cu then it produces__________________?
A. dry cell
B. galvanic cell
C. electrolytic cell
D. A and B
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
The species which donate two electron pairs in a coordination compound is called__________________?
A. ligand
B. mono-dentate ligand
C. poly-dentate ligand
D. bi-dentate ligand
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