Class 7 Online Courses

Chapter 3: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 3

Atoms Molecules and Ions MCQ (Multiple Choice Questions) PDF - 6

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Atoms Molecules and Ions Questions & Answers PDF Download: MCQ Quiz 6

MCQ 26: The diameter of a 'nucleus' is

A) 0.00001nm
B) 1nm
C) 0.1nm
D) 0.01nm

MCQ 27: The total number of protons in atom of each element is called its

A) atomic number
B) atomic mass
C) molecular mass
D) atomic scale

MCQ 28: The smallest particle of an atom which exists, is called

A) matter
B) atom
C) proton
D) electron

MCQ 29: The nucleus in an atom consists of

A) protons
B) neutrons
C) electrons
D) both a and b

MCQ 30: Molecules which contain fixed number of same type of atoms are molecules or

A) elements
B) compounds
C) mixtures
D) all of them

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Atoms Molecules and Ions App (Android & iOS)

Atoms Molecules and Ions App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)