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IGCSE O Level Chemistry Competitive Exam MCQs – Mock Test 139

Proton and Nucleon Number Notes Questions with Answers PDF Download – Test 139

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

Free "Proton & Nucleon Number Notes" App iOS & Android with MCQ: If nucleon and neutron numbers are 27 and 14 respectively, the number of electrons will be; with answers: 18, 12, 15, and 13 for chemistry modern learning. 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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