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IGCSE O Level Chemistry Certification MCQs – Mock Test 39

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Study Relative Molecular Mass Notes Questions and Answers PDF to maximize chemistry digital quality. Download the Relative Molecular Mass Quiz Answers PDF e-Book, Ch. 3-39 to study IGCSE O Level Chemistry Practice Tests. Learn Chemical Formulae and Equations MCQ Questions PDF, Relative Molecular Mass Multiple Choice Questions (MCQ Quiz) for chemistry examination success. Free Relative Molecular Mass Learning App: Download the IGCSE O Level Chemistry Notes App to study relative molecular mass, catalysts and enzymes, electrolyte and non electrolyte, ph scale: acid and alkali test prep to strengthen chemistry virtual retention.

Download the "Relative Molecular Mass Learning" App (Android & iOS): Greatest proportion by mass of nitrogen is in; MCQ with answers: ammonium nitrate (nh4no3), hydrazine (n2h4),, urea (nh2conh2), and ammonium sulphate (nh4)2so4. Learn Chemical Formulae and Equations Questions and Answers, Apple Book to download free chapter to maximize chemistry digital quality.

Relative Molecular Mass MCQs – Mock Test 39 PDF Download

MCQ 191: The greatest proportion by mass of nitrogen is in:

  1. Hydrazine (N2H4),
  2. ammonium nitrate (NH4NO3)
  3. ammonium sulphate (NH4)2SO4
  4. urea (NH2CONH2)

MCQ 192: The optimal temperature for enzymes is:

  1. room temperature
  2. 35-37 °C
  3. 40-45 °C
  4. above 45 °C

MCQ 193: Anodic oxidation refers to the:

  1. loss of electrons at the anode
  2. gain of electrons at the cathode
  3. loss of electrons at the cathode
  4. gain of electrons at the anode

MCQ 194: Seawater has a pH of:

  1. 5
  2. 7
  3. 9
  4. 11

MCQ 195: Approximate volume can be measured through:

  1. volumetric flask
  2. burette
  3. measuring cylinder
  4. beaker

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