Worksheetsd and f block elements
Total questions: 14
Worksheet time: 5mins
Which block of elements are known as transition elements?
s block
p block
d block
f block
Electronic configuration of d- block element is
n d 1-10 ns 1
(n-2) d 1-10 ns 1-2
(n-1) d 1-10 ns 1-2
(n-1) d 1-6 ns 1-2
The transition elements are those elements which have ........ in their ground state or in any one of
their oxidation states.
completely filled (partly filled) d-subshell
incompletely filled (partly filled) d-subshell
empty d subshell
None of these
The d-block Elements consists of how many rows ?
2
3
4
5
Each rows of d-block elements has ........elements.
5
8
9
10
First transition series is also known as
3 d series
4 d series
5 d series
None of these
The magnetic moment of Mn2+ is
4.5
5.0
5.9
2.3
Anomalous electronic configuration in the 3d series are of
Cr and Fe
Cu and Zn
Fe and Cu
Cr and Cu
Transistion elements form alloys easily because they have
Same atomic number
Same electronic configuration
Nearly same atomic size
None of the above
The property which is not characteristic of transistion metals is
variable oxidation states.
tendency to form complexes.
formation of coloured compounds.
natural radioactivity.
Which of the following has the maximum number of unpaired electrons?
Cu2+
Ti3+
V3+
Fe2+
Which of the transition element exhibit only one oxidation state?
Mn
Cu
Sc
Ti
Reason for lanthanoid contraction is
Very poor shielding effect of f orbital
decrease in nuclear charge
Increase in nuclear charge
Increase in shielding effect
