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Industrial Chemistry 1b - Test 2


1. Calcium carbide reacts with excess water to give

    A. acetylene + carbon monoxide
    B. ethyne + calcium hydroxide
    C. acetylene + coke
    D. ethene + calcium oxide


2. Which of these is most reactive with cold water?

    A. Na
    B. K
    C. Mg
    D. Ca


3. The bond that exists between two chlorine atoms in chlorine gas is:

    A. pure covalent
    B. partially ionic
    C. polar
    D. coordinate covalent


4. Lamps used for roadway illumination contain vaporous:

    A. sodium
    B. potassium
    C. lithium
    D. magnesium


5. If an electric spark were passed through a tube filled only with hydrogen:

    A. the hydrogen would explode
    B. the hydrogen would condense
    C. water vapor would form
    D. no reaction would occur


6. Solid iodine produces a solution with a deep brown color when dissolved in:

    A. water
    B. alcohol
    C. carbon tetrachloride
    D. carbon disulfide


7. Helium is used:

    A. in the plastic industry
    B. for deep-sea diving
    C. for making gasoline
    D. as a solvent


8. The main function of the superheated water in the Frasch process is to:

    A. melt the sulfur
    D. dissolve the sulfur
    C. emulsify the sulfur
    D. suspend the sulfur


9. A hydrocarbon solvent fire is best extinguished with:

    A. carbon dioxide
    B. water
    C. compressed air
    D. sand


10. Fluorine is normally produced by the:

    A. reduction of the fluoride ion
    B. action of chlorine on potassium fluoride
    C. electrolysis of sodium fluoride solution
    D. electrolysis of potassium hydrogen fluoride






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