Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 9

MEDIUM

11th CBSE

IMPORTANT

Earn 100

Calculate the uncertainty in the position of a dust particle with mass equal to $1 m g$ if the uncertainty in its velocity is $5.5 \times 10^{- 20} {m s}^{- 1} .$

Important Questions on Structure of Atom

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 10

The uncertainty in the momentum of a particle is

2.2 \times 10^{- 4} g c m s^{- 1} .

With what accuracy can its position be determined?

(h = 6.626 \times 10^{- 27} e r g s)

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 11

Calculate the uncertainty in the velocity of an electron if the uncertainty in its position is

1 Å

or

100 p m (10^{- 10} m) .

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 12

What is the minimum uncertainty in the position of a bullet of mass

5 g

that is known to have a speed somewhere between

550,00000

and

550,00001 {m s}^{- 1} ?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 1

If

n

is equal to

3,

what are the values of quantum numbers

l

and

m ?

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 2

How many orbitals are present in the subshells with

n = 3, l = 2 ?

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 2

How many orbitals are present in the subshells with

n = 4, l = 2 ?

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 2

How many orbitals are present in the subshells with

n = 5, l = 2 ?

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 2 - Structure of Atom>PROBLEMS FOR PRACTICE>Q 3

What are the values of

n, l

and

m

for

2 p

-orbitals?