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HSC Chemistry Multiple Choice Quiz

megclark 10 preguntas 3.085 visitas 1,0 (2 valoraciones)

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Preguntas del test (10)

  1. 1The graph on the left shows the maximum dissolved oxygen concentration in water as a function of temperature at normal atmospheric pressure. What is the volume of O2 that can dissolve n 10.0L of water at \(25\,^{\circ}\)C and normal atmospheric pressure?Imagen de la pregunta 1
    1. A62.0 mL
    2. B63.5 mL
    3. C80.0 mL
    4. D124 mL
  2. 2Bromine, \(Br_2\), dissolves in unsaturated hydrocarbons and reacts immediately. Which of the following is the best description of this process? Imagen de la pregunta 2
    1. ABromine is polar and reacts by adding bromine atoms across the double bond
    2. BBromine is polar and reacts by substituting hydrogen atoms with bromine atoms
    3. CBromine is non-polar and reacts by substituting hydrogen atoms with bromine atoms
    4. DBromine is non-polar and reacts by adding bromine atoms across the double bond
  3. 3Which of the following groups contains ONLY acidic substance?Imagen de la pregunta 3
    1. AAntacid tablets, baking soda, laundry detergents
    2. BBlood, oven cleaner, sea water
    3. CMilk, tea, drain cleaner
    4. DVinegar, wine, aspirin
  4. 4What flame colour is produced by barium ions in a flame test?Imagen de la pregunta 4
    1. ARed
    2. BBlue
    3. CGreen
    4. DOrange
  5. 5In a fermentation experiment, 6.50g of glucose was completely converted to ethanol and carbon dioxide. What is the mass of carbon dioxide produced?Imagen de la pregunta 5
    1. A1.59g
    2. B3.18g
    3. C9.53g
    4. D13.0g
  6. 6Which of the following cations can be identified using a flame test?Imagen de la pregunta 6
    1. A\(Al^3+\)
    2. B \(Cu^2+\)
    3. C \(Mg^2+\)
    4. D \(Zn^2+\)
  7. 7A group of students produced a red solution by boiling red cabbage leaves in water. When dilute sodium hydroxide was added to the solution, it turned purple. When dilute hydrochloric acid was added to the red solution, no colour change occurred. Which of these substances, when added, is most likely to cause the red solution to change colour?Imagen de la pregunta 7
    1. ACleaning solution containing ammonia
    2. BConcentrated hydrochloric acid
    3. COrange juice
    4. DVinegar
  8. 8An understanding of Le Chatelier's principle is important in the chemical industry. Which prediction can be made using this principle?Imagen de la pregunta 8
    1. AThe identity of products of a chemical reaction
    2. BThe effects of change in temperature on the rates of reactions
    3. CThe effects of catalysts on the position of equilibrium reactions
    4. DThe effect of changes in the concentration of chemical substances in equilibrium
  9. 9What did the Bronstead-Lowry definition of acids identify that made it a significant improvement over earlier definitions?Imagen de la pregunta 9
    1. AAcids contain hydrogen
    2. BAcids contain proton donors
    3. CAcids contain oxygen
    4. DAcids are electron-pair acceptors
  10. 10Which term describes the relationship between oxygen and ozone?Imagen de la pregunta 10
    1. AAllotropes
    2. BConjugates
    3. CIsomers
    4. DIsotopes

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Descripción
These HSC chemistry questions and answers are taken from past papers of the exam. Test yourself and see if your ready to take the exam!
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