Courses

Industrial Chemistry 1a - Test 1


1. A fifth of whiskey contains:

  A. 0.75 liters
  B. 0.84 liters
  C. 1.32 liters
  D. 1.06 liters


2. Silver tarnishes when it reacts with:

  A. ammonia
  B. carbon dioxide
  C. hydrogen sulfide
  D. nitrogen


3. The black deposit formed when a piece of copper is heated in air is:

  A. soot
  B. carbon
  C. cupric oxide
  D. cupric hydroxide


4. The most important use of hydrogen sulfide is in:

  A. vulcanizing rubber
  B. food preservative
  C. chemical analysis
  D. fungicides


5. Portland cement is made by heating together:

  A. sand, limestone, and soda
  B. sand and clay
  C. coke, iron ore, and limestone
  D. clay and limestone


6. Which of the following compounds is the most volatile?

  A. ammonium hydroxide
  B. calcium hydroxide
  C. potassium hydroxide
  D. sodium hydroxide


7. Nitric acid is collected by:

  A. condensation
  B. displacement of water
  C. filtration
  D. sublimation


8. Coal is composed of:

  A. petrified wood
  B. buried plant material that has partially decayed
  C. buried animal material that has partially decayed
  D. a variety of iron ore


9. A glass containing substantial amounts of potassium and lead is:

  A. safety glass
  B. flint glass
  C. plate glass
  D. pyrex glass


10. Commercially, chlorine is prepared:

  A. by heating sodium chloride
  B. from the electrolysis of aqueous sodium chloride
  C. from the decomposition of hydrochloric acid
  D. from salt water






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