AIPMT 2009 | Structure of Atom Question 42 | Chemistry

PREVIOUS NEXT

AIPMT 2009

MCQ (Single Correct Answer)

-1

Which of the following is not permissible arrangement of electrons in an atom ?

n = 5, $$l$$ = 3, m = 0, s = +1/2

n = 3, $$l$$ = 2, m = $$-$$ 3, s = $$-$$1/2

n = 3, $$l$$ = 2, m = $$-$$ 2, s = $$-$$1/2

n = 4, $$l$$ = 0, m = 0, s = $$-$$1/2

AIPMT 2008

MCQ (Single Correct Answer)

-1

The measurement of the electron position is associated with an uncertainty in momentum, which is equal to 1 $$ \times $$ 10^$$-$$18 g cm s^$$-$$1. The uncertainty in electron velocity is (mass of an electron is 9 $$ \times $$ 10^$$-$$28 g)

1 $$ \times $$ 10⁵ cm s^$$-$$1

1 $$ \times $$ 10¹¹ cm s^$$-$$1

1 $$ \times $$ 10⁹ cm s^$$-$$1

1 $$ \times $$ 10⁶ cm s^$$-$$1

AIPMT 2008

MCQ (Single Correct Answer)

-1

If uncertainty in position and momentum are equal, then uncertainty in velocity is

$${1 \over m}\sqrt {{h \over \pi }} $$

$$\sqrt {{h \over \pi }} $$

$${1 \over {2m}}\sqrt {{h \over \pi }} $$

$$\sqrt {{h \over {2\pi }}} $$

AIPMT 2007

MCQ (Single Correct Answer)

-1

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)

(ii), (iv) and (v)

(i) and (iii)

(ii), (iii) and (iv)

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution