chemistry : class11 Subshell electron arrangement : Concept of subshells : Structure of Atom MCQ Questions and Answers
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Subshell electron arrangement
MCQ questions and answers.
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MCQ Questions
1. What is the maximum number of electrons that can be accommodated in an s subshell?
A.
2
B.
6
C.
10
D.
14
Correct Answer:
2
Explanation:
An s subshell contains one orbital, and each orbital can hold a maximum of two electrons. Therefore, an s subshell can accommodate 2 electrons.
2. What is the maximum number of electrons that can be accommodated in a p subshell?
A.
2
B.
6
C.
10
D.
14
Correct Answer:
6
Explanation:
A p subshell contains three orbitals. Since each orbital holds two electrons, the maximum capacity is 3 × 2 = 6 electrons.
3. What is the maximum number of electrons that can be accommodated in a d subshell?
A.
2
B.
6
C.
10
D.
14
Correct Answer:
10
Explanation:
A d subshell contains five orbitals, and each orbital can hold two electrons. Thus, it can accommodate a maximum of 5 × 2 = 10 electrons.
4. What is the maximum number of electrons that can be accommodated in an f subshell?
A.
6
B.
10
C.
14
D.
18
Correct Answer:
14
Explanation:
An f subshell contains seven orbitals. With two electrons in each orbital, its maximum capacity is 7 × 2 = 14 electrons.
5. Which subshell has only one orbital?
A.
s
B.
p
C.
d
D.
f
Correct Answer:
s
Explanation:
The s subshell consists of one orbital, while p, d, and f subshells contain three, five, and seven orbitals, respectively.
6. How many orbitals are present in a p subshell?
A.
1
B.
3
C.
5
D.
7
Correct Answer:
3
Explanation:
A p subshell contains three orbitals. Each of these orbitals can accommodate two electrons.
7. Which subshell can accommodate 10 electrons?
A.
s subshell
B.
p subshell
C.
d subshell
D.
f subshell
Correct Answer:
d subshell
Explanation:
A d subshell has five orbitals, and each orbital holds two electrons. Therefore, its maximum electron capacity is 10.
8. How many electrons are present in the completely filled 2p subshell?
A.
2
B.
4
C.
6
D.
8
Correct Answer:
6
Explanation:
The 2p subshell is a p subshell, which contains three orbitals. When completely filled, it contains 3 × 2 = 6 electrons.
9. Which electron arrangement represents a completely filled s subshell?
A.
s1
B.
s2
C.
s3
D.
s4
Correct Answer:
s2
Explanation:
An s subshell has one orbital, and one orbital can contain a maximum of two electrons. Therefore, s2 represents a completely filled s subshell.
10. Which electron arrangement represents a completely filled p subshell?
A.
p2
B.
p4
C.
p6
D.
p8
Correct Answer:
p6
Explanation:
A p subshell has three orbitals and can hold a maximum of six electrons. Therefore, p6 represents a completely filled p subshell.
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