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Transition Elements - 2
1.
Stag contains ___________, so it is ground to powder and sold as fertilizer.
a) Complex formation
b) Calcium Phosphate
c) Coordination sphere
d) Oxidizing
2.
The geometry of a complex is octahedral if the central metal atom has __________ hybridized orbital.
a) +2
b) Sp
3
d
2
c) K
2
Cr
2
O
7
d) Mn, Si, P
3.
Oxides carbon and sulphur being volatile escape as gases, while those of _________ & _________ from slags.
a) +2
b) 0.12 to 0.25
c) K
2
Cr
2
O
7
d) Mn, Si, P
4.
The process of chemical decay of metals due to action of surrounding medium is called ______________.
a) Corrosion
b) Calcium Phosphate
c) Oxidizing
d) Coordination sphere
5.
Almost all chromates are _______________ in color.
a) Yellow
b) Red
c) Blue
d) Black
6.
Dichromates are powerful______________ agents.
a) Anionic
b) Corrosion
c) Calcium Phosphate
d) Oxidizing
7.
______________ is used in leather industry for chrome tanning.
a) +2
b) Mn, Si, P
c) K
2
Cr
2
O
7
d) Sp
3
d
2
8.
______________ are non stoichiometric compounds.
a) Corrosion
b) Interstitial compounds
c) Coordination sphere
d) Calcium Phosphate
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