Topic: Structure of Atom, Test No.: 03, Total MCQs: 10
Congratulations - you have completed Topic: Structure of Atom, Test No.: 03, Total MCQs: 10.
You scored %%SCORE%% out of %%TOTAL%%.
Your performance has been rated as %%RATING%%
Your answers are highlighted below.
Question 1 |
a-particles, b-particles and g-rays
are all having same energy. Their penetrating power in a given medium in
increasing order will be [NEET 2013]
b, g, a | |
g, a, b | |
a, b, g | |
b, a, g |
Question 2 |
Which of the
following is correct?
1H1
and 2He3 are isotopes | |
6C14
and 7N14 are isotopes | |
19K39
and 20Ca40 are isotones | |
9F19
and 11Na24 are isodiaphers |
Question 3 |
Which
of the following is not permissible?
n = 4, l = 3, m = 0 | |
n = 4, l = 2, m = 1 | |
n = 4, l = 4, m = 1 | |
n = 4, l = 0, m = 0 |
Question 4 |
Which
of the following pair of ions have same paramagnetic moment?
Cu+2,
Ti+3 | |
Mn+2,
Cu+2 | |
Ti+4,
Cu+2 | |
Ti+3,
Ni+2 |
Question 5 |
Which of the
following statements does not form a part of Bohr's model of hydrogen atom?
Energy of the electrons in the orbit is quantised | |
The electron in the orbit nearest the nucleus has the lowest energy | |
Electrons revolve in different orbits around the nucleus | |
The position and velocity of the electrons in the orbit cannot be determined simultaneously |
Question 6 |
Which
one of the following expressions represent the electron probability function
4pr dry2 | |
4pr2 dry | |
4pr2 dry2 | |
4pr dry |
Question 7 |
Which one of
the following has unit positive charge and 1 amu mass?
Electron | |
Neutron | |
Proton | |
None of these |
Question 8 |
Which one of
the following statement is not correct?
Rydberg's constant and wave number have same units | |
Lyman series of hydrogen spectrum occur in the ultraviolet region | |
The angular
momentum of the electron in the ground state hydrogen atom is equal to h/2p | |
The radius of
first Bohr orbit of hydrogen atom is 2.116 × 10–8 cm. |
Question 9 |
Which one of
the followings sets of quantum numbers represents the highest energy level in
an atom?
n = 4, l = 0, m = 0, s = + 1/2 | |
n = 3, l = 1, m = 1, s = + 1/2 | |
n = 3, l = 2, m = -2, s = + 1/2 | |
n = 3, l = 0, m = 0, s = + 1/2 |
Question 10 |
Which transition in the hydrogen atomic spectrum will have the
same wavelength as the transition, n = 4 to n = 2 of He+ spectrum?
n = 4 to n = 3 | |
n = 3 to n = 2 | |
n = 4 to n = 2 | |
n = 2 to n = 1 |
Once you are finished, click the button below. Any items you have not completed will be marked incorrect.
There are 10 questions to complete.