Class 7 Online Courses

Chapter 2: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 2

Atoms and Atom Model Quiz Questions and Answers PDF - 15

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Atoms and Atom Model Questions & Answers PDF Download: MCQ Quiz 15

MCQ 71: Each collision of Uranium-238 with neutrons releases

A) energy
B) radiations
C) light
D) waves

MCQ 72: Carbon is represented by

A) C
B) Na
C) K
D) Mg

MCQ 73: One molecule of water is made up of

A) one oxygen and one hydrogen atom
B) one oxygen and two hydrogen atoms
C) two oxygen and one hydrogen atom
D) two oxygen and two hydrogen atoms

MCQ 74: Electrons fill energy level starting from the

A) lowest level
B) highest level
C) central level
D) upper level

MCQ 75: The number of neutrons in carbon-14 is

A) 7
B) 8
C) 9
D) 14

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Atoms and Atom Model App (Android & iOS)

Atoms and Atom Model 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)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)