MCQs On Stoichiometry And Stoichiometric Calculations

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MCQs On Stoichiometry And Stoichiometric Calculations - Quiz

Check out these MCQs on stoichiometry and stoichiometric calculations and see how good you're at using chemistry problems based on chemical formulas. Stoichiometry is a branch of chemistry that calculates various quantities of reactants and products of a chemical reaction using balanced chemical equations. How quickly can you solve a stoichiometric calculation accurately? Why don't you play the below quiz and see for yourself? Shall we begin the test? Best of luck, buddy!


Questions and Answers
  • 1. 
    How many molecules are there in one mole of H2O?
    • A. 

      6.023 x 1019

    • B. 

      6.023 x 1023

    • C. 

      1.084 x 1018

    • D. 

      None of these

  • 2. 
    A flask contains 500 cmof SOat STP. The flask contains?
    • A. 

      40 g

    • B. 

      100 g

    • C. 

      50 g

    • D. 

      1.427 g

  • 3. 
    A necklace has 6 g of diamond in it. What are the number of atoms in it?
    • A. 

      6.02 x 1023

    • B. 

      12.04 x 1023

    • C. 

      1.003 x 1023

    • D. 

      3.01 x 1023

  • 4. 
    What is the mass of aluminum in204 g of the aluminum oxide, Al2O3?
    • A. 

      26 g

    • B. 

      27 g

    • C. 

      54 g

    • D. 

      108 g

  • 5. 
    The reactant which is consumed earlier and gives least quantity of product is called
    • A. 

      Reactant in excess

    • B. 

      Stoichiometry

    • C. 

      Limiting reactant

    • D. 

      Stoichiometric amount

  • 6. 
    Which one of the following compounds contains the highest percentage by the mass of nitrogen
    • A. 

      NH3

    • B. 

      N2H4

    • C. 

      NO

    • D. 

      NH2OH

  • 7. 
    Vitamin-A has a molecular formula C20H30O. The number of vitamin-A molecules in 500 mg of its capsule will be?
    • A. 

      6.02 x 1023

    • B. 

      1.05 x 1021

    • C. 

      3.01 x 1022

    • D. 

      3.01 x 1023

  • 8. 
    When one mole of each of the following is completely burnt in oxygen, which will give the largest mass of CO2?
    • A. 

      Carbon monoxide

    • B. 

      Diamond

    • C. 

      Ethane

    • D. 

      Methane

  • 9. 
    One mole of ethanol and one mole of ethane have an equal
    • A. 

      Mass

    • B. 

      Number of atoms

    • C. 

      Number of electron

    • D. 

      Number of molecules

  • 10. 
    Methane react with steam to form H2 and CO as shown below. What volume of H can be obtained from 100 cmof methane at the standard temperature and pressure?
    • A. 

      300 cm3

    • B. 

      200 cm3

    • C. 

      150 cm3

    • D. 

      100 cm3

  • 11. 
    The Avogadro's constant is the number of ?
    • A. 

      Atoms in 1 g of Helium

    • B. 

      Molecules in 35.5 g of chloride

    • C. 

      Electrons needed to deposit 24 g of Mg

    • D. 

      Atoms in 24 g of Mg

  • 12. 
    How many mole of oxygen are needed for the complete combustion of two moles of butane?
    • A. 

      2

    • B. 

      8

    • C. 

      10

    • D. 

      13

  • 13. 
    If four moles of SO2 are oxidized to SO, how many moles of oxygen molecules are required?
    • A. 

      0.5

    • B. 

      1.0

    • C. 

      1.5

    • D. 

      2.0

  • 14. 
    What is the mass of 2 moles of chlorine gas if the relative atomic mass of chlorine is 35.5 amu?
    • A. 

      142 g

    • B. 

      71 g

    • C. 

      35.5 g

    • D. 

      18.75 g

  • 15. 
    Which of the following statements is incorrect?
    • A. 

      12 g of carbon gas contains one mole of atoms

    • B. 

      28 g of nitrogen gas contains one mole of molecules of N2

    • C. 

      1dmof 1.0 mole dm-3 solution of NaCl contains one mole of chloride ions

    • D. 

      None of above

  • 16. 
    One mole of propane has the same
    • A. 

      Number of H- atoms as one mole of methane (CH4)

    • B. 

      Number of C-atoms as in one mole of butane (C4H10)

    • C. 

      Mass as half a mole of hexane (C6H14)

    • D. 

      Number of molecules as in one mole of ethane (C2H6)

  • 17. 
    What is the mass of one mole of iodine molecules?
    • A. 

      254 g

    • B. 

      74 g

    • C. 

      106 g

    • D. 

      127 g

  • 18. 
    What volume of SO2 at room temperature and pressure is produced on heating 9.7 g of Zinc sulphide (ZnS) if reaction takes place as follows?
    • A. 

      1.2 dm3

    • B. 

      2.4 dm3

    • C. 

      3.6 dm3

    • D. 

      4.8 dm3

    • E. 

      None of these

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