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Study Percent Composition of Elements MCQ with Answers PDF for chemistry remote learner participation. Download the Percent Composition of Elements Multiple Choice Questions (MCQs) PDF e-Book, Ch. 3-92 to study IGCSE O Level Chemistry Practice Tests. Learn Chemical Formulae and Equations Test PDF, Percent Composition of Elements Multiple Choice Questions (MCQ Quiz) to improve quiz performance. Download the Percent Composition of Elements MCQs App: Free IGCSE O Level Chemistry Learning App to study percent composition of elements, chemistry reactions, proton and nucleon number, catalysts and enzymes test prep for chemistry remote learner participation.

Free Percent Composition of Elements MCQs App Download (Android & iOS): "In Calcium Chloride, the percentage composition of Calcium is"; MCQ with answers: 0.3722, 0.4621, 0.36112, and 0.4621. Practice Chemical Formulae and Equations Questions and Answers, Google e-Book to download free chapter for chemistry remote learner participation.

Percent Composition of Elements MCQ – Mock Test 92 PDF Download

MCQ 456: In Calcium Chloride, the percentage composition of Calcium is:

  1. 0.4621
  2. 0.3722
  3. 0.4621
  4. 0.36112

MCQ 457: Products of reaction CuO + HNO3 → are:

  1. Cu2NO3 + H2O
  2. Cu(NO3)2 + H2O
  3. Cu(NO3)2 + H2
  4. Cu(NO2)4 + H2

MCQ 458: Extra stability is gained in the third shell if the number of electrons is:

  1. 18
  2. 2
  3. 8
  4. 10

MCQ 459: Many catalysts are:

  1. noble gases
  2. transition metals
  3. non-metals
  4. inert gases

MCQ 460: Consider the equation ZnO + NaOH + H2O → Na2Zn(OH)4. Moles of H2O required to balance the equation would be:

  1. 1
  2. 2
  3. 3
  4. 4

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