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IGCSE O Level Chemistry Entrance Exam: Mock Test 61

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The Quiz: Methane (CH4) is better fuel than Coal gas because; "Save Energy: O Level Chemistry" App Download [Free] with answers: it is exothermic, it is endothermic, it requires very little oxygen to burn, and it gives off more heat than coal gas for SAT subject tests. Learn Energy from Chemicals Questions and Answers, Apple iBook to download free chapter to learn online school courses.

Save Energy: O Level Chemistry Questions and Answers PDF Download: MCQ 61

MCQ: 301

Methane (CH4) is better fuel than Coal gas because

  1. it is endothermic
  2. it is exothermic
  3. it gives off more heat than coal gas
  4. it requires very little oxygen to burn
MCQ: 302

Rate of decomposition of Hydrogen Peroxide (H2O2) can be slowed down through

  1. glycerin
  2. manganese oxide
  3. vanadium oxide
  4. platinum
MCQ: 303

In electrolysis of dilute Hydrochloric Acid (HCl(aq)), at anode,

  1. oxygen gas is given off
  2. hydrogen gas is given off
  3. chlorine gas is given off
  4. hydrogen chloride gas is given off
MCQ: 304

Liquids may become vapors

  1. upon boiling only
  2. without boiling
  3. at a temperature below the boiling point of a liquid
  4. at a temperature above the boiling point of a liquid
MCQ: 305

Least reactive metal in given series is

  1. tin
  2. copper
  3. lead
  4. silver

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