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Industrial Chemistry 1b - Test 4


1. At about 4 degrees centigrade, water has its greatest:

    A. density
    B. vapor pressure
    C. specific heat
    D. volume


2. Which of the following solutions is not an electrolyte?

    A. salt in water
    B. sugar in water
    C. sea water
    D. ammonium chloride in water


3. Slaked lime is

    A. calcium carbonate
    B. calcium hydroxide
    C. calcium oxide
    D. calcium phosphate


4. Which of the following elements has the greatest atomic weight?

    A. manganese
    B. potassium
    C. phosphorus
    D. tin


5. The general expression for a decomposition reaction is

    A. AB + C -----> AC + B
    B. AB -----> A + B
    C. AB + CD -----> AC + BD
    D. A + B -----> AB


6. Of the following, which is the weakest acid?

    A. HF
    B. HCl
    C. HBr
    D. HI


7. Which hydrogen halide has the greatest covalent character?

    A. HCl
    B. HI
    C. HF
    D. HBr


8. When they combine chemically with metal atoms, nonmetal atoms:

    A. gain electrons to become negative ions
    B. lose electrons to become positive ions
    C. remain electrically neutral
    D. form Van der Waals bonds


9. A solution of zinc chloride should not be stored in a tank made of:

    A. aluminum
    B. silver
    C. copper
    D. lead


10. Any hydrate may be converted to the anhydrous form by:

    A. recrystallization
    B. evaporation from solution
    C. heating
    D. exposing it to air






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