Multiple choice

Consider the following statements:

  1. PVC (Poly Vinyl Chloride) is commonly used as the insulation on electrical cables.
  2. Most plastics are made from petroleum (oil or natural gas).

Which of the above statements is/are true?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  1. Polyvinyl chloride, commonly abbreviated PVC, is the third-most widely produced plastic, after polyethylene and polypropylene. PVC is commonly used as the insulation on electrical cables; PVC used for this purpose needs to be plasticized.
    1. Most plastics are made from petroleum (oil or natural gas). First, refineries process the crude oil to produce fuels, such as gasoline, and many petrochemicals. Petrochemicals then are used by chemical plants to obtain many products, like fertilizers, lubricants, and plastic resins. Plastic resins are, in turn, used to produce many different types of plastics.

Keep practicing — related questions