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 MCQ Question Quiz For Class 9 Science (Chemistry) Chapter - 3 Structure of Atom. CBSE NCERT Special For Exam Ncert class 9 structure of atom in english solutions.structure of atom class 9 Mcq quiz | mcq structure of atom class 9 science | mcq questions quiz of structure of atom class 9 

MCQ questions quiz of structure of atom class 9 

PART - 1

Video 📷 Solution

The subatomic particle called electron was discovered by:

A) J.J. Thomson

B) Neils Bohr

C) James Chadwick

D) E. Goldstein

Ans a

Goldstein’s experiments which involved passing high voltage electricity

through gases at very low pressure resulted in the discovery of:

A. electron

B. proton

C. nucleus

D. neutron

Ans b

Who discovered electrons ?

A) J.J. Thomson

B) Neils Bohr

C) James Chadwick

D) E. Goldstein

Ans a

Who discovered neutron ?

A) J.J. Thomson

B) Neils Bohr

C) James Chadwick

D) E. Goldstein

Ans c

Who observed first time proton ?

A) J.J. Thomson

B) Neils Bohr

C) James Chadwick

D) E. Goldstein

Ans e

Who discovered proton ?

A) Ernest Rutherford

B) Neils Bohr

C) James Chadwick

D) E. Goldstein

Ans a

Who discovered nucleus of atom ?

A) Ernest Rutherford

B) Neils Bohr

C) James Chadwick

D) E. Goldstein

Ans a

The first model of an atom was given by:

A) Neils Bohr

B) Ernest Rutherford

B) J.J. Thomson

D) Eugen Goldstein

Ans b

The first model of an atom was given by

(a) N. Bohr

(b) E. Goldstein

(c) Rutherford

(d) J.J. Thomson

Ans d