NDA CHEMISTRY QUIZ

Question 1:

The maximum number of electrons present in d subshell is

9

5

10

12

Question 2:

The maximum number of electrons present in n = 3 and l = 1 is

6

10

12

14

Question 3:

Which of the following orbitals are not permitted ?

3s
4f
1p
2d

Both 1 and 3

Both 3 and 4

Both 1 and 2

Both 2 and 3

Question 4:

If the Planck's constant, the de Broglie wavelength of a particle having a momentum of 2.5 X 10^-14 Kgm/s will be-

2.64 X 10^-20 m

3.64 X 10^-20 m

1.64 X 10^-20 m

2.94 X 10^-20 m

Question 5:

According to de Broglie theory , if the velocity of particle is zero then wavelength is

Infinity

Zero

No change

Some finite value

Question 6:

The effect of the Heisenberg Uncertainty Principle is significant only for-

Microscopic object

Macroscopic object

Both 1 and 2

None of these

Question 7:

According to de- Broglie equation , for ordinary objects wavelength is

Small

Large

Zero

Not defined

Question 8:

Which of the following is responsible for the advent of quantum mechanics ?

Dual behaviour of matter

Heisenberg uncertainty principle

Bohr theory

Both 1 and 2

Question 9:

Which of the following sub shell contain 5 orbitals ?

s

p

d

f

Question 10:

The correct relation of Heisenberg uncertainty principle is

NDA CHEMISTRY QUIZ - 14

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NDA CHEMISTRY QUIZ - 14

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