CBSE NEET Chemistry Practice MCQs 1=> CHAPTER 2 ( STRUCTURE OF ATOM) 11th Class

These are MCQs of CHAPTER 2 ( STRUCTURE OF ATOM) for 11th Class. Practic MCQs to check your knowledge for Entracne examination like CBSE NEET etc

1. A region in space around the nucleus of an atom where the probability of finding the electron is maximum is called

• sub-level
• orbit
• orbital
• electron shell

2. Rutherford scattering experiment is related to size of the

• numcleus
• atom
• electron
• neutron

3. The phenomenon of splitting of spectral lines under the influence of the electric field is known as

• Photoelectric Effect
• Stark Effect
• Zeeman Effect
• Electromagnetic Effect

4. In H atom when electron jumps form 1s to 2s orbital,

• Energy is released
• Energy is absorbed
• the atom becomes cation
• size of the atom decreases

5. How many quantum numbers are required to define the electron in atom?

• 2
• 3
• 1
• 4

6. Which of the following orbital does not make sense?

• 3d
• 3f
• 5p
• 7s

7. The number of spherical nodes in 4s-orbital is

• 4
• infinity
• 2
• 3

8. The total number of orbitals in energy level represented by n = 5 are

• 16
• 50
• 30
• 25

9. For an orbital with n = 2, l = 1, m = 0 there is/are

• one planar node
• one region of maximum probability
• two lobes of same size about the nucleus
• all the above statements are correct

10. Which of the following orbitals does not have angular node?

• 2s
• 2p
• 3p
• 3d

CBSE NEET Chemistry Practice MCQs 1=> CHAPTER 2 ( STRUCTURE OF ATOM) =>

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