Transition Elements (General Introduction, Electronic Configuration,...) NEET Questions

Inorganic Chemistry - D- and F-Block Elements

Transition Elements (General Introduction, Electronic Configuration,...) MCQ Questions


1.
According to IUPAC, transition metals are defined as metals which have:
A.
Incomplete s subshell in their ions
B.
Incomplete d subshell either in neutral atom or in their ions
C.
Incomplete f subshell in neutral atoms
D.
Completely filled d subshell in neutral atoms
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ANSWER :
B. Incomplete d subshell either in neutral atom or in their ions
2.
Which of the following is NOT regarded as a transition element?
A.
Cu
B.
Mn
C.
Zn
D.
Sc
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ANSWER :
C. Zn
3.
The electronic configuration of Cr (Z=24) in ground state is:
A.
[Ar] 3dā¶4sā°
B.
[Ar] 3dāµ4sĀ¹
C.
[Ar] 3dĀ³4sĀ²4pĀ¹
D.
[Ar] 3dā“4sĀ²
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ANSWER :
B. [Ar] 3dāµ4sĀ¹
4.
The electronic configuration of Cu (Z=29) in ground state is:
A.
[Ar] 3dĀ¹ā°4sĀ²
B.
[Ar] 3dāø4sĀ²4pĀ¹
C.
[Ar] 3dĀ¹ā°4sĀ¹
D.
[Ar] 3dā¹4sĀ²
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ANSWER :
C. [Ar] 3dĀ¹ā°4sĀ¹
5.
The general electronic configuration of d-block elements is:
A.
(n-2)fĀ¹ā»Ā¹ā“(n-1)dĀ¹ā»Ā¹ā°nsĀ²
B.
(n-1)dĀ¹ā»Ā¹ā° nsĀ¹ā»Ā²
C.
(n-1)dĀ¹ā»Ā¹ā° nsā°ā»Ā²
D.
ndĀ¹ā»Ā¹ā° (n+1)sĀ¹ā»Ā²
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ANSWER :
B. (n-1)dĀ¹ā»Ā¹ā° nsĀ¹ā»Ā²
6.
Which transition element has anomalous electronic configuration of (n-1)dĀ¹ā°nsā°?
A.
Ni
B.
Au
C.
Pd
D.
Pt
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ANSWER :
C. Pd