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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