Consider the following sets of quantum numbers: n l m s (i) 3 0 0 + 1 / 2 (ii) 2 2 1 + 1 / 2 (iii) 4 3 - 2 - 1 / 2 (iv) 1 0 - 1 - 1 / 2 (v) 3 2 3 + 1 / 2 Which of the following sets of quantum number is not possible?

( i ) , ( ii ) , ( iii ) and ( iv )

E M B I B E

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 27

MEDIUM

NEET

IMPORTANT

Earn 100

Energy of first excited state in hydrogen atom is $- 3.4 eV$ , then kinetic energy of electron in same orbit of hydrogen atom is

50% studentsanswered this correctly

Important Questions on Structure of Atom

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 28

The value of Planck's constant is

6.63 \times 10^{- 34} Js

. The velocity of light is

3.0 \times 10^{8} {ms}^{- 1}

. Which value is closest to the wavelength in nanometers of a quantum of light with frequency of

8 \times 10^{15} s^{- 1}

?

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 29

The frequency of radiation emitted when the electron falls from

n = 4

to

n = 1

in a hydrogen atom will be (Given ionization energy of

H = 2.18 \times 10^{- 18} J

{atom}^{- 1}

and

h = 6.625 \times 10^{- 34} Js

)

HARD

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 30

Among the following transition metal ions, the one set where all the metal ions have

3 d^{2}

electronic configuration is (Atomic numbers:

Ti = 22, V = 23, Cr = 24, Mn = 25

)

HARD

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 31

The energy of second Bohr orbit of the hydrogen atom is $- 328 kJ {mol}^{- 1}$ , hence, the energy of the fourth Bohr orbit would be

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 32

The uncertainty involved in the measurement of velocity of electron within a distance of $0.1 Å$ is

(Given: The mass of electron is $9.11 \times 10^{- 31} kg$ , Planck's constant is $6.626 \times 10^{- 34} J s$ )

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 33

The orientation of an atomic orbital is governed by :

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 34

Consider the following sets of quantum numbers:

$n$		$l$	$m$	$s$
(i)	$3$	$0$	$0$	$+ 1 / 2$
(ii)	$2$	$2$	$1$	$+ 1 / 2$
(iii)	$4$	$3$	$- 2$	$- 1 / 2$
(iv)	$1$	$0$	$- 1$	$- 1 / 2$
(v)	$3$	$2$	$3$	$+ 1 / 2$

Which of the following sets of quantum number is not possible?

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 35

The uncertainty in the measurement of the position of an electron is associated with the uncertainty in the momentum, which is equal to

1 \times 10^{- 18} g cm s^{- 1}

. The uncertainty in the electron velocity is (mass of an electron is

9 \times 10^{- 28} g

)

Learn and Prepare for any exam you want !

|

|

|

|

|

|

|

|

Energy of first excited state in hydrogen atom is -3.4 eV, then kinetic energy of electron in same orbit of hydrogen atom is

Important Questions on Structure of Atom

Learn and Prepare for any exam you want !

Energy of first excited state in hydrogen atom is $- 3.4 eV$ , then kinetic energy of electron in same orbit of hydrogen atom is