Structure of Atom Test

Result

Structure of Atom Test - 31

Score
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Weekly Quiz Competition

Question 1
4 / -1

Which one of the following sets of quantum number represent an impossible arrangement ?

A

B

C

D
Question 2
4 / -1

The orbital diagram in which Aufbau principle is violated is

A

B

C

D
Question 3
4 / -1

A

B

C

D
Question 4
4 / -1

The electrons, identified by quantum number n and (i) n = 4, l = 1 (ii) n = 4, l = 0 (iii) n = 3, l = 2 (iv) n = 3, l = 1 can be placed in order of increasing energy, from the lowest to highest, as

A
(iv) < (ii) < (iii) < (i)

B
(ii)< (iv) < (i) < (iii)

C
(i) < (iii) < (ii) < (iv)

D
(iii) < (i) < (iv) < (ii)
Question 5
4 / -1

The wave length associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order

A
10^–10 m

B
10^–20 m

C
10^–30 m

D
10^–40 m
Question 6
4 / -1

If the nitrogen atom had electronic configuration 1s⁷, it would have energy lower than that of the normal ground state configuration 1s², 2s², 2p³ because the electrons would be closer to the nucleus. Yet, 1s⁷ is not observed because it violates.

A
Heisenberg uncertainty principle

B
Hund’s rule

C
Pauli’s exclusion principle

D
Bohr postulates of stationary orbits
Question 7
4 / -1

Radial nodes present in 3s and 2p – orbitals are respectively

A
0, 2

B
2, 0

C
2, 1

D
1, 2
Question 8
4 / -1

Calculate the energy in joule corresponding to light of wavelength 45 nm : (Planck’s constant h = 6.63 × 10^–34 Js; speed of light c = 3 × 10⁸ ms^–1)

A
6.67 × 10¹⁵

B
6.67 × 10¹¹

C
4.42 × 10^–15

D
4.42 × 10^–18

Solution
Question 9
4 / -1

Which of the following are iso-electronic ?

A
Li and Be⁺

B
H^- and He⁺

C
He and H

D
Be⁺ and H

Solution
Question 10
4 / -1

An elements

A
is one type of atom

B
is two or more types of atom

C
has constant boiling point

D
has constant melting point