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

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

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
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
ANSWER :
C. Zn
3.
The electronic configuration of Cr (Z=24) in ground state is:
A.
[Ar] 3d⁶4s⁰
B.
[Ar] 3d⁵4s¹
C.
[Ar] 3d³4s²4p¹
D.
[Ar] 3d⁓4s²
ANSWER :
B. [Ar] 3d⁵4s¹
4.
The electronic configuration of Cu (Z=29) in ground state is:
A.
[Ar] 3d¹⁰4s²
B.
[Ar] 3d⁸4s²4p¹
C.
[Ar] 3d¹⁰4s¹
D.
[Ar] 3d⁹4s²
ANSWER :
C. [Ar] 3d¹⁰4s¹
5.
The general electronic configuration of d-block elements is:
A.
(n-2)f¹⁻¹⁓(n-1)d¹⁻¹⁰ns²
B.
(n-1)d¹⁻¹⁰ ns¹⁻²
C.
(n-1)d¹⁻¹⁰ ns⁰⁻²
D.
nd¹⁻¹⁰ (n+1)s¹⁻²
ANSWER :
B. (n-1)d¹⁻¹⁰ ns¹⁻²
6.
Which transition element has anomalous electronic configuration of (n-1)d¹⁰ns⁰?
A.
Ni
B.
Au
C.
Pd
D.
Pt
ANSWER :
C. Pd