Structure of Atom Test

Result

Structure of Atom Test - 19

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Weekly Quiz Competition

Question 1
4 / -1

Splitting of spectral lines under the influence of magnetic field is called

A
Stark effect

B
Zeeman effect

C
Photoelectric effect

D
None of these
Question 2
4 / -1

The total number of orbitals in a shell with principal quantum number ‘n’ is

A
2n

B
2n²

C
n²

D
n + 1
Question 3
4 / -1

The ratio of specific charge of a proton and an α – particle is

A
2 : 1

B
1 : 2

C
1 : 4

D
1 : 1
Question 4
4 / -1

Which of the following sets of quantum numbers belongs to highest energy ?

A

B

C

D
Question 5
4 / -1

According to Bohr’s theory, the energy required for the transition of H atom from n = 6 to n = 8 state is

A
equal to energy required for the transitions from n = 5 to n = 7 state

B
larger than in (A)

C
less than in (A)

D
equal to energy for the transition from n = 7 to n = 9 state
Question 6
4 / -1

What will be de – Broglie wavelength of an electron moving with a velocity of 1·20 × 10⁵ms^–1?

A

B

C

D
Question 7
4 / -1

The third line of the Balmer series. in the emission spectrum of the hydrogen atom, is due to the transition from the

A
fourth Bohr orbit to the first Bohr orbit

B
fifth Bohr orbit to the second Bohr orbit

C
sixth Bohr orbit to the third Bohr orbit

D
seventh Bohr orbit to the third Bohr orbit
Question 8
4 / -1

The highest number of unpaired electrons are w present in

A
Fe°

B
Fe⁴⁺

C
Fe²⁺

D
Fe³⁺
Question 9
4 / -1

Rutherford’s atomic model suggests the existence

A
Atom

B
Nucleus

C
α – particle

D
Mesons
Question 10
4 / -1

Which is not true with respect to cathode rays?

A
A stream of electrons

B
Charged particles

C
Move with speed as that of light

D
Can be deflected by magnetic fields