Industrial Chemistry 1a - Test 2


1. Which of the following normally contains no phosphorus in any form?

    A. bones of animals
    B. strike anywhere matches
    C. commercial fertilizer mixtures
    D. steel


2. Molecular solids are usually:

    A. electrical conductors
    B. quite hard
    C. quite brittle
    D. volatile


3. A reaction in which the products possess more energy than the reactants is:

    A. an isothermic reaction
    B. reversible reaction
    C. endothermic reaction
    D. exothermic reaction


4. The percentage of oxygen in water, by weight, is about:

    A. 11 percent
    B. 16 percent
    C. 33 percent
    D. 89 percent


5. What product results from the reaction between calcium and water?

    A. hydrogen peroxide
    B. calcium oxide
    C. hydrogen
    D. oxygen


6. Charcoal is made by a process known as

    A. carbonation
    B. organic synthesis
    C. destructive distillation
    D. hydration


7. A water solution of chlorine exposed to sunlight

    A. explodes
    B. liberates oxygen
    C. liberates hydrogen
    D. forms a peroxide


8. The most prevalent ingredient of glass is:

    A. boron oxide
    B. silicon dioxide
    C. lead oxide
    D. calcium oxide


9. Ozone is:

    A. a fast oxidizing agent
    B. a powerful oxidizing agent
    C. a straight molecule
    D. a stable allotrope


10. The best way of extinguishing an alkali metal fire is to:

    A. use a carbon tetrachloride extinguisher
    B. smother it with a blanket
    C. use water
    D. smother it with sand






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