Courses

Industrial Chemistry 1b - Test 1


1. Steel-making consumes over 70% of the annual production of:

    A. sulfuric acid
    B. ammonia
    C. oxygen
    D. chlorine


2. The solvent used in the extraction of aluminum from its ore is

    A. cryolite
    B. bauxite
    C. water
    D. molten sodium chloride


3. Triple superphosphate fertilizer is made by treating phosphate rock with:

    A. sulfuric acid
    B. nitric acid
    C. phosphoric acid
    D. ammonia


4. One United States standard pound (avoirdupois) is equivalent to:

    A. 543.6 g
    B. 453.6 g
    C. 354.6 g
    D. 534.6 g


5. When a liquid is heated in an open vessel, its temperature rises until:

    A. it is completely vaporized.
    B. its vapor pressure equals atmospheric pressure.
    C. the latent heat is all absorbed.
    D. the kindling temperature is reached.


6. The fractional distillation of liquid air is used commercially to obtain:

    A. dry ice
    B. ammonia
    C. oxygen
    D. carbon dioxide


7. Which of the following compounds contains only two elements?

    A. sodium sulfate
    B. potassium chloride
    C. potassium nitrate
    D. magnesium carbonate


8. For a reaction to take place, it is necessary that:

    A. the particles be in the form of a gas
    B. the substance must be under a high pressure
    C. a force of attraction exist between the particles
    D. the particles collide


9. The rate of decomposition of ammonia can be studied by:

    A. titration
    B. observing the pressure change
    C. by using indicators
    D. observing the color change


10. Which one of the following has the greatest number of atoms?

    A. 12 pounds of carbon
    B. 100 pounds of lead
    C. 100 pounds of iron
    D. 20 pounds of silicon






WordTrance.com