Group 13 to 18 Elements General Introduction(Electronic Configuration and General Trends in Physical and Chemical Properties...) NEET Questions

Inorganic Chemistry - P-Block Elements

Group 13 to 18 Elements General Introduction(Electronic Configuration and General Trends in Physical and Chemical Properties...) MCQ Questions


7.
Which of the following is the correct electronic configuration of Aluminium (Z = 13)?
A.
[Ne] 3s¹ 3p²
B.
[Ar] 3s² 3p¹
C.
[Ne] 3s² 3p¹
D.
[Ne] 3s² 3p²
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ANSWER :
C. [Ne] 3s² 3p¹
8.
Which element has the electronic configuration [Kr] 4d¹⁰ 5s² 5p³?
A.
Antimony (Sb)
B.
Tellurium (Te)
C.
Tin (Sn)
D.
Arsenic (As)
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ANSWER :
A. Antimony (Sb)
9.
Which group element has the smallest first member showing maximum anomalous behavior?
A.
Group 13 (Boron)
B.
Group 17 (Fluorine)
C.
All of these
D.
Group 15 (Nitrogen)
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ANSWER :
C. All of these
10.
The element with electronic configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p² belongs to which group?
A.
Group 13
B.
Group 15
C.
Group 16
D.
Group 14
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ANSWER :
D. Group 14
11.
The correct order of atomic radii of group 13 elements is:
A.
B < Al < Ga < In < Tl
B.
B < Ga < Al < In < Tl
C.
Tl < In < Ga < Al < B
D.
B < Al < Ga < Tl < In
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ANSWER :
B. B < Ga < Al < In < Tl
12.
Across a period, atomic radius:
A.
First increases then decreases
B.
Remains constant
C.
Decreases due to increasing effective nuclear charge
D.
Increases due to increasing nuclear charge
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ANSWER :
C. Decreases due to increasing effective nuclear charge