Structure of Atom Test

Result

Structure of Atom Test - 34

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Weekly Quiz Competition

Question 1
4 / -1

The emission spectrum of hydrogen discovered first and the region of the electromagnetic spectrum in which it belongs, respectively are

A
Lyman, ultraviolet

B
Lyman, visible

C
Balmer, utraviolet

D
Balmer, visible

Solution
Question 2
4 / -1

The Balmer series in atomic hydrogen is observed in the following spectral region

A
infrared

B
ultraviolet

C
visible

D
far IR
Question 3
4 / -1

A
1.214 × 10^-7m

B
2.816 × 10^-7m

C
6.500 × 10^-7m

D
8.500 × 10^-7m

Solution
Question 4
4 / -1

The transition of electron in H atom that will emit maximum energy is

A
n₃ → n₂

B
n₄ → n₃

C
n₅ → n₄

D
n₄ → n₅
Question 5
4 / -1

Which of the following is not true in Rutherford's nuclear model of atom

A
Protons and neutrons are present inside the nucleus

B
Volume of nucleus is very small as compared to the volume of an atom

C
The number of protons and neutrons are always equal

D
The number of electrons and protons are always equal
Question 6
4 / -1

When the electrons of hydrogen atom return to L shell from shells of higher energy, we get a series of lines in the spectrum. This series is called

A
Balmer series

B
Lyman series

C
Brackett series

D
Paschen series
Question 7
4 / -1

The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [a₀ is Bohr radius]

A

B

C

D

Solution
Question 8
4 / -1

If the radius of H is 0.54 Å, then what will be the radius of ₃Li²⁺ ?

A
0.17 Å

B
0.36 Å

C
0.53 Å

D
1.59 Å

Solution
Question 9
4 / -1

The work function (ϕ)of some metals are listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is

A
2

B
4

C
6

D
8

Solution
Question 10
4 / -1

A gas absorbs photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at

A
1035 nm

B
325 nm

C
743 nm

D
518 nm

Solution