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What is the repeating unit in polyethylene?

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Question: What is the repeating unit in polyethylene?

Options:

  1. -CH2-CH2-
  2. -C6H5-
  3. -C3H6-
  4. -C2H4-

Correct Answer: -CH2-CH2-

Solution: 

The repeating unit in polyethylene is -CH2-CH2-, derived from ethylene monomers.

What is the repeating unit in polyethylene?

Practice Questions

Q1
What is the repeating unit in polyethylene?
  1. -CH2-CH2-
  2. -C6H5-
  3. -C3H6-
  4. -C2H4-

Questions & Step-by-Step Solutions

What is the repeating unit in polyethylene?
  • Step 1: Understand that polyethylene is a type of plastic.
  • Step 2: Know that polyethylene is made from small building blocks called monomers.
  • Step 3: Identify the monomer used to make polyethylene, which is called ethylene.
  • Step 4: Recognize the chemical structure of ethylene, which is -CH2=CH2-.
  • Step 5: When ethylene monomers join together to form polyethylene, they lose some parts and create a repeating unit.
  • Step 6: The repeating unit in polyethylene is -CH2-CH2-, which comes from the ethylene monomers.
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