Structure of Atom Test

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Structure of Atom Test - 17

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Weekly Quiz Competition

Question 1
4 / -1

Number of waves made by a Bohr electron in one complete revolution in its fourth orbit is

A
2

B
3

C
4

D
infinite
Question 2
4 / -1

Which of the following electronic transitions require that the greatest amount of energy be absorbed by a hydrogen atom?

A
n = 1 to n = 2

B
n = 2 to n = 4

C
n = 3 to n = 6

D
n = 0 to n = 1
Question 3
4 / -1

The radius of first Bohr orbit is , then de-Broglie wavelength of electron in 3rd orbit is nearly

A
2πx

B
6πx

C
9x

D
x/3
Question 4
4 / -1

With increasing principle quantum number, the energy difference between adjacent energy levels in H atom

A
decreases

B
increases

C
remains constant

D
decreases for low value of Z and increases for higher value of Z
Question 5
4 / -1

The electrons present in K – shell of the atom will differ in

A
principal quantum number

B
azimuthal quantum number

C
magnetic quantum number

D
spin quantum number
Question 6
4 / -1

The ratio of the ionization energy of H and Be³⁺ is..............

A
1: 1

B
1: 3

C
1 : 9

D
1: 16

Solution
Question 7
4 / -1

The maximum number of electrons in a subshell for which l = 3 is

A
14

B
10

C
8

D
4
Question 8
4 / -1

The number of electrons in the M shell of the element with atomic number 24 is

A
24

B
12

C
13

D
8
Question 9
4 / -1

Sodium chloride imparts a yellow colour to the Bunsen flame. This can be interpreted due to the

A
low ionization energy of sodium

B
sublimation of metallic sodium to give yellow vapour

C
emission of excess energy absorbed as a radiation in the visible region

D
photosensitivity of sodium
Question 10
4 / -1

The exact path of electron 2p – orbital cannot be determined.” The above statement is based upon

A
Hund’s Rule

B
Bohr’s Rule

C
Uncertainty principle

D
Aufbau principle

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Structure of Atom Test - 17

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Structure of Atom Test - 17

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Question 1

2

3

4

infinite

Question 2

n = 1 to n = 2

n = 2 to n = 4

n = 3 to n = 6

n = 0 to n = 1

Question 3

2πx

6πx

9x

x/3

Question 4

decreases

increases

remains constant

decreases for low value of Z and increases for higher value of Z

Question 5

principal quantum number

azimuthal quantum number

magnetic quantum number

spin quantum number

Question 6

1: 1

1: 3

1 : 9

1: 16

Solution

Question 7

14

10

8

4

Question 8

24

12

13

8

Question 9

low ionization energy of sodium

sublimation of metallic sodium to give yellow vapour

emission of excess energy absorbed as a radiation in the visible region

photosensitivity of sodium

Question 10

Hund’s Rule

Bohr’s Rule

Uncertainty principle

Aufbau principle

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