Percent Composition of Elements MCQs Quiz Online PDF Download

Learn percent composition of elements MCQs, O level chemistry test for online courses learning and test prep to practice. Chemical formulae and equations quiz has multiple choice questions (MCQ), percent composition of elements quiz questions and answers to learn for public high school online tests.

IGCSE chemistry practice test MCQ on in na2co3.10h2o, percentage of oxygen is with options 0.1678, 0.1608, 0.1659 and 0.1684 problem solving skills for viva, competitive exam prep, interview questions with answer key. Free study guide is for online learning percent composition of elements quiz with MCQs to practice test questions with answers.

MCQs on Percent Composition of Elements Quiz PDF Download

MCQ. In Na2CO3.10H2O, percentage of oxygen is

  1. 0.1678
  2. 0.1608
  3. 0.1659
  4. 0.1684


MCQ. In Na2CO3, relative atomic mass of Oxygen is

  1. 12
  2. 24
  3. 36
  4. 48


MCQ. In Sulfuric Acid (H2SO4), chemical composition of sulfur is

  1. 0.0204
  2. 0.3265
  3. 0.6531
  4. 0.9821


MCQ. Formula of Nitrogen Trichloride (NCl3) is

  1. NaCl2
  2. NaCl3
  3. NCl3
  4. N2Cl3


MCQ. Formula of tetra chloromethane is

  1. CCl4
  2. CH4Cl4
  3. C(HCl)4
  4. C4. HCl4