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Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science Exam MCQs – Practice Test 28 (Chapter 1)

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Study Atoms and atom model Notes Questions and Answers PDF for science academic readiness programs. Download the Atoms and Atom Model Quiz Answers PDF e-Book, Ch. 1-28 to study Class 7 Science Course. Practice Uses of Radioisotopes MCQ PDF, Atoms and Atom Model Quiz Questions and Answers for science academic readiness programs. Download the Atoms and Atom Model Notes App: Free Class 7 Science Learning App to uses of radioisotopes, covalent bonds, atoms and elements, mass number and isotopes test prep for science academic learning portals.

Free Atoms and Atom Model Learning App Download: True statement about strength of bonding is; MCQ with answers: covalent bonding is stronger than ionic bonding, ionic bonding is weaker than covalent bonding, ionic bonding is weaker than dative bonding, and covalent bonding is weaker than ionic bonding. Practice Uses of Radioisotopes MCQ Questions, download Kobo e-Book (Free Chapter) to strengthen scientific reasoning.

Atoms and Atom Model MCQs – Practice Test 28 PDF Download

MCQ 136: In medical the most common use of nuclear battery is in:

  1. hybrid machine
  2. heart machine
  3. pace maker
  4. ultrasound machine

MCQ 137: True statement about strength of bonding is:

  1. ionic bonding is weaker than covalent bonding
  2. covalent bonding is stronger than ionic bonding
  3. ionic bonding is weaker than dative bonding
  4. covalent bonding is weaker than ionic bonding

MCQ 138: The most common use of 'radioactivity' is:

  1. generation of electricity
  2. production of medicine
  3. in agriculture
  4. in industries

MCQ 139: An atom of 'hydrogen' has:

  1. one proton and one electron
  2. one proton, one neutron and one electron
  3. one proton and one neutron
  4. one electron and one neutron

MCQ 140: Protons and neutrons have:

  1. charge
  2. mass
  3. energy
  4. sound

Atoms and Atom Model Exam Prep – Class 7 Science Notes App & e-Book

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