Structure of Atom Test

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Structure of Atom Test - 14

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Weekly Quiz Competition

Question 1
4 / -1

In an atom which has 2K, 8L, 8M and 2N electrons in the ground state, the total number of electrons having = 1are

A
20

B
8

C
12

D
10
Question 2
4 / -1

The number of electrons that can be accommodated in d_xy orbital is

A
10

B
4

C
1

D
2
Question 3
4 / -1

The electronic configuration of Mn can be written as

A
[Ar] 4s²

B
[Ar] 3d⁶, 4s²

C
[Ar] 3d⁵, 4s¹

D
[Ar] 3d⁵, 4s²
Question 4
4 / -1

Which of the following sets of quantum numbers is not possible for 23rd electron of Cr( At. no. 24) ?

A
3, 2, +2, –1⁄2

B
3, 2, -2, +1⁄2

C
3, 2, + 1, +1⁄2

D
3, 1, + 1, +1⁄2
Question 5
4 / -1

Which d – orbital does not have four lobes?

A
dx² – y²

B
dxy

C
dyz

D
dzx
Question 6
4 / -1

The total number of electrons present in any main energy level can be calculated from

A
(2l + 1)

B
2n²

C
(2n+1)

D
n²
Question 7
4 / -1

Which shape is associated with the orbital designated by n = 2; / = 1 ?

A
spherical

B
tetrahedral

C
dumb – bell

D
pyramidal
Question 8
4 / -1

Which of the following statements about quantum numbers is wrong?

A
If the value of l = 0, the electron distribution is spherical

B
The shape of the orbital is given by subsidiary quantum number

C
The Zeeman’s effect is explained by magnetic quantum number

D
The spin quantum number gives the orientations of electron cloud
Question 9
4 / -1

The two electrons have the following sets of quantum numbers . X: 3, 2, –2, +1⁄2 Y : 3, 0, 0, +1⁄2. What is true of the following?

A
X and Y have same energy

B
X and Y have unequal energy

C
X and Y represent same electron

D
None of the statements is correct
Question 10
4 / -1

If the value of azimuthal quantum number of an electron is 2, then which of the following values of magnetic quantum numbers is not permissible,

A
3

B
2

C
0

D
1

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Structure of Atom Test - 14

Result

Structure of Atom Test - 14

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Question 1

20

8

12

10

Question 2

10

4

1

2

Question 3

[Ar] 4s2

[Ar] 3d6, 4s2

[Ar] 3d5, 4s1

[Ar] 3d5, 4s2

Question 4

3, 2, +2, –1⁄2

3, 2, -2, +1⁄2

3, 2, + 1, +1⁄2

3, 1, + 1, +1⁄2

Question 5

dx2 – y2

dxy

dyz

dzx

Question 6

(2l + 1)

2n2

(2n+1)

n2

Question 7

spherical

tetrahedral

dumb – bell

pyramidal

Question 8

If the value of l = 0, the electron distribution is spherical

The shape of the orbital is given by subsidiary quantum number

The Zeeman’s effect is explained by magnetic quantum number

The spin quantum number gives the orientations of electron cloud

Question 9

X and Y have same energy

X and Y have unequal energy

X and Y represent same electron

None of the statements is correct

Question 10

3

2

0

1

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[Ar] 4s²

[Ar] 3d⁶, 4s²

[Ar] 3d⁵, 4s¹

[Ar] 3d⁵, 4s²

dx² – y²

2n²

n²