Structure of Atom Test

Result

Structure of Atom Test - 16

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Weekly Quiz Competition

Question 1
4 / -1

For a sub – shell with azimuthal quantum number l, the total values of magnetic quantum number m can be related to l as

A
m = ( +2)

B
m = (2² + 2)

C

D
l= 2m+1.
Question 2
4 / -1

An orbital with = 0 is

A
symmetrical about X – axis only

B
symmetrical about Y – axis only

C
spherically symmetrical

D
unsymmetrical
Question 3
4 / -1

In two H atoms A and 13 the electrons move around the nucleus in circular orbits of radius r and 4r respectively. The ratio of the times taken by them to complete one revolution is

A
1: 4

B
1: 2

C
1: 8

D
2: 1
Question 4
4 / -1

The energy required to dislodge electron from excited isolated H atom (IE₁ = 13.6eV) is

A
= 13.6eV

B
> 13.6eV

C
< 13.6eVand > 3.4eV

D
3.4eV
Question 5
4 / -1

Velocity of electron in the first orbit of H-atom is compared to that of velocity of light is approximately

A

B

C

D
same
Question 6
4 / -1

How many electrons in Cu atom have (n + ) = 4

A
6

B
7

C
8

D
4
Question 7
4 / -1

In any subshell the maximum number of electrons having same value of spin quantum number is

A

B
l + 2

C
2l

D
4l + 2
Question 8
4 / -1

How many electrons in K (Z = 19) have n = 4 and ?

A
1

B
2

C
3

D
4
Question 9
4 / -1

Suggest two transitions in hydrogen spectrum for which wave number ratio is 108:7

A
2 → 1, 3 → 1

B
2 → 1, 4 → 3

C
2 → 1, 5 → 4

D
2 → 1, 4 → 1
Question 10
4 / -1

One unpaired electron causes magnetic moment of 1.1 B.M. The magnetic moment of Fe⁺² ion is

A
4.4

B
5.5

C
2.2

D
0