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IGCSE O Level Chemistry Certification Exam Tests

IGCSE O Level Chemistry Practice Test 171

Atoms and Elements Quiz PDF: Questions and Answers - 171

The Atoms and Elements Quiz Questions and Answers PDF, Atoms and Elements Quiz Answers PDF e-Book download Ch. 6-171 to solve IGCSE O Level Chemistry Practice Tests. Learn Elements, Compounds and Mixtures MCQ Questions PDF, Atoms and Elements Multiple Choice Questions (MCQ Quiz) to learn online GCSE courses. The Atoms and Elements Quiz App: Free download educational app for atoms and elements, acidity or alkalinity, molecules and covalent bonds, dissolving, filtering and evaporating, ionic and covalent substances test prep for online colleges for teaching.

The Quiz: Most common element in air is; "Atoms & Elements Quiz" App (iOS & Android) with answers: Nitrogen; Hydrogen; Oxygen; Carbon; for online colleges for teaching. Study Elements, Compounds and Mixtures Questions and Answers, Google eBook to download free sample for colleges that offer online courses.

Atoms & Elements Questions and Answers PDF Download: Quiz 171

MCQ 851:

The most common element in the air is

  1. hydrogen
  2. nitrogen
  3. oxygen
  4. carbon
MCQ 852:

Each color is associated with a particular pH in

  1. litmus indicator
  2. universal indicator
  3. methyl orange indicator
  4. Phenolphthalein indicators
MCQ 853:

In Oxygen molecule (O2), stability is gained through sharing of

  1. one electron
  2. two electrons
  3. three electrons
  4. four electrons
MCQ 854:

Crystallization is used to purify

  1. sugar only
  2. fertilizers only
  3. salt from solution
  4. sugar and fertilizers
MCQ 855:

The melting point of the diamond is

  1. 340 °C
  2. 3400 °C
  3. 370 °C
  4. 3700 °C

IGCSE O Level Chemistry Exam Prep Tests

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Atoms & Elements App (Android & iOS)

Atoms & Elements App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (iOS & Android)

A level Chemistry App (Android & iOS)

A level Chemistry App (Android & iOS)

9th Grade Chemistry App (Android & iOS)

9th Grade Chemistry App (iOS & Android)