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 - 35

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Atoms and Atom Model Questions & Answers PDF Download: MCQ Quiz 35

MCQ 171: The symbol of 'magnesium' is

A) Ne
B) Na
C) N
D) Mg

MCQ 172: Carbon dioxide contains

A) ionic bonding
B) covalent bonding
C) metallic bonding
D) dative bonding

MCQ 173: Actually, the particle that makes difference in atoms is

A) neutron
B) proton
C) electron
D) photon

MCQ 174: All bonding involve

A) protons
B) neutrons
C) electrons
D) positrons

MCQ 175: To study the changes that occur during photosynthesis,

A) carbon-12 is added to carbon dioxide
B) carbon-13 is added to carbon dioxide
C) carbon-14 is added to carbon dioxide
D) carbon-14 is added to carbon monoxide

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