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IGCSE O Level Chemistry Competitive Exam MCQs – Mock Test 139

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Learn Proton and Nucleon Number Notes Questions and Answers PDF to enhance chemistry remote attainment. Download the Proton and Nucleon Number Quiz Answers PDF e-Book, Ch. 14-139 to study IGCSE O Level Chemistry Practice Tests. Study Structure of Atom MCQ Questions PDF, Proton and Nucleon Number Multiple Choice Questions (MCQ Quiz) for chemistry classroom learning. Free Proton and Nucleon Number Notes App: Download the IGCSE O Level Chemistry Study App to study proton and nucleon number, chemical symbols, collection of gases test prep for chemistry modern learning.

Download the "Proton & Nucleon Number Notes" App (iOS & Android): If nucleon and neutron numbers are 27 and 14 respectively, the number of electrons will be; MCQ with answers: 18, 12, 15, and 13. Study Structure of Atom Questions and Answers, Apple Book to download free chapter to enhance chemistry remote attainment.

Proton & Nucleon Number MCQs – Mock Test 139 PDF Download

MCQ 691: If nucleon and neutron numbers are 27 and 14 respectively, the number of electrons will be:

  1. 12
  2. 18
  3. 13
  4. 15

MCQ 692: Hydrogen Sulfate (H2SO4) has:

  1. positive charge
  2. negative charge
  3. double negative charge
  4. double positive charge

MCQ 693: What is correct about lighter gases?

  1. they may be collected through downward delivery
  2. they may be collected by upward displacement of air
  3. they are dried through conc. H2SO4
  4. they are dried through dilute H2SO4

MCQ 694: If nucleon number of fluorine is 19, proton number will be:

  1. 7
  2. 15
  3. 18
  4. 19

MCQ 695: Ions are held together through:

  1. physical attraction among electrons
  2. high kinetic energies of electrons
  3. electro-static attraction between ions
  4. static attraction between ions

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