........
d) (n-1)dns
c)(n-1)d-10 ns0_1
d) Titanium
c) Nickel
EXCERCISE
Multiple Choice Questions.
1) The general electronic configuration of transition element is,
a)(n-1)dl-10
b) (n-1)dºns?
2) The First element of 1st transition series element is
a) Chromium
b) Scandium
3) Chromium (Z-24) has outer electronic configuration,
a) 4d44s
b) 4d4s
c) 3d%3s
4) Which one of the following has largest radii?
a) Mnº
5) An atom with atomic number 21 belongs to
a) s-block element b) p-block elements c) d-block elements
6) Out the following metal ion of which is not coloured is ........
d) 3d 4s
3+
d) Co3+
b) Cr3+
c) Fe3+
d) f-block elements
b) V2+
a) Fe3+
d) Ti3+
c) Zn2+
.......
c) Mn
d) Zn
7) Highest oxidation state is shown by the element,
a) Fe
b) Cr
8) Which one of the following ion shows violet colour?
b) Cr3+
9) The common oxidation state shown by 1st transition series element is,
a) 2
5
c) 4
a) Ti3+
c) Ni2+
d) Cu2+
d) 7
+b) 5
100
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