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Chemistry Class 12 Chapter 6
Transition Elements
Test 9
1.
The central atom with legand is?
Complex ion
Co-ordination sphere
Ligand
Complex compound
2.
In complex compound oxidation state is written in?
English Greek
Roman numeral
Hebrew
3.
Geometry of complex compounds depends upon?
No. of ligands
No. of chelates
Hybridization of central metal
All of these
4.
For sp
3
d
2
hybridization ,the expected geometry will be?
etrahedral
Square planer
Trigonal
Octahedral
5.
Which is the following is the typical transition element?
Sc
Y
Ra
Co
6.
Any process of chemical decay of metal due to action of surrounding material is?
Corrosion
Enamel
Coating
Surrounding
7.
When an active metal like Al come in contact with less active metal like Cu, then it produces?
Voltaic cell
Galvanic cell
Electrolytic cell
Voltaic and galvanic both
8.
Bessemer’s converter furnace is used in?
Open hearth furnace
Down’s method
Bessemer’s process
All of theabove
9.
In open hearth Si, Mn ,C ,S are converted into their oxides at temperature?
1000
o
c
1200
o
c
1400
o
c
1600
o
c
10.
When impurities are P and S furnace is lined with?
SiO
2
Fe
2
O
3
CaO , MgO
FeO
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