Structure of Atom Class 11 MCQ

Structure of Atom MCQ

Structure of Atom Chemistry Question Answers

These are some of the random multiple question answers from Structure of Atom… 

1. Who discovered anode rays :

Goldstein
Rutherford
J. Stanley
J. J. Thomson

2. Neutron was discovered by :

Rutherford
Chadwick
Austin

 Langmuir

3. Radioactive isotope of hydrogen has ________ number of neutrons :

 0
 1
 2
 3

4. Cathode rays are deflected by :

A magnetic field only
An electric field only

By Both
By None

5. Cathode rays have :

Mass Only
Charge Only
Mass and Charge Both
No Charge and No Mass

6. Mass of atom is mainly constituted by :

Neutrons and neutrino
Neutrons and electrons

Neutrons and protons
Protons and electrons

7. Ratio of mass of proton and electron is :

1.8
1.8×103

Infinite
None of these

8. Atomic number of an element is equal to the number of  :

 Proton
 Electron
 Neutron
 Electron and Proton

9. Size of nucleus is :

 10-8 m

 10-10 m

 10-12 m

10-15 m

10. Who modifies Bohr’s model :

Dalton
Pauli
Rutherford
Sommerfeld

Also read Chemistry Notes of this chapter at below link…
11 Class Chapter 2- Structure of Atom

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