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IGCSE O Level Chemistry Certification Exam Tests

IGCSE O Level Chemistry Practice Test 145

Exothermic Reactions Quiz Questions and Answers PDF Download - 145

The Exothermic Reactions Quiz Questions and Answers PDF (Exothermic Reactions Quiz with Answers PDF e-Book) download Ch. 7-145 to prepare IGCSE O Level Chemistry Practice Tests. Solve Energy from Chemicals MCQ with answers PDF, Exothermic Reactions Multiple Choice Questions (MCQ Quiz) for online college classes. The Exothermic Reactions Quiz App Download: Free learning app for exothermic reactions, catalysts and enzymes, electrolyte and non electrolyte, valency and chemical formula, conductors and non conductors test prep for free online college courses.

The Quiz MCQ: Burning of methane (CH4) gives off heat and; "Exothermic Reactions" App Download (Free) with answers: Water (gas) only; Carbon dioxide (gas) only; Hydrogen gas; Carbon dioxide (gas) and water (gas); for online college classes. Learn Energy from Chemicals Questions and Answers, Apple eBook to download free sample to learn online IGCSE GCSE courses.

Exothermic Reactions Questions and Answers PDF Download: MCQ 145

MCQ 721:

Burning of methane (CH4) gives off heat and

  1. carbon dioxide (gas) only
  2. water (gas) only
  3. hydrogen gas
  4. carbon dioxide (gas) and water (gas)
MCQ 722:

Uses of enzymes do not include

  1. production of insulin
  2. production of cancer drugs
  3. drug to combat plague
  4. drug to fight dwarfism
MCQ 723:

After the electrolysis of brine, the resulting solution largely contains

  1. Cl2 gas
  2. NaCl
  3. NaOH
  4. H2 gas
MCQ 724:

Formula of Calcium Nitride (Ca3N2) is

  1. Ca3N5
  2. Ca3NO2
  3. Ca3N2
  4. Ca2N5
MCQ 725:

Which statement is correct about the conductor?

  1. it changes while conducting electricity
  2. it does not change while conducting electricity
  3. it does not allow flow of electricity
  4. it cannot operate at high pressures

IGCSE O Level Chemistry Exam Prep Tests

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Exothermic Reactions App (Android & iOS)

Exothermic Reactions App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (iOS & Android)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

A level Chemistry App (Android & iOS)

A level Chemistry App (iOS & Android)