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Eighth Grade (Grade 8) Organic Chemistry Questions

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Grade 8 Organic Chemistry
The four classes of organic chemistry required by living things are
  1. Carbohydrates, proteins, vitamins, and lipids
  2. Carbohydrates, proteins, nucleic acids, and vitamins
  3. Carbohydrates, proteins, nucleic acids, and lipids
  4. Carbohydrates, vitamins, nucleic acids, and lipids
Grade 8 Organic Chemistry
A compound that contains only hydrogen and carbon is defined as
  1. a monomer
  2. an isomer
  3. a hydrocarbon
  4. a polymer
Grade 8 Organic Chemistry
Which of the following compounds is not organic?
  1. [math]NO_2[/math]
  2. [math]C_3H_8[/math]
  3. [math]C_6 H_12 O_6[/math]
  4. [math]CH_4[/math]
Grade 8 Organic Chemistry
Why does carbon play an important role in the chemistry of living organisms?
  1. Carbon helps organisms regulate temperature
  2. Carbon atoms allow organisms to transmit molecules
  3. Carbon is the most abundant element in organisms
  4. Carbon atoms combine in many ways with atoms of carbon and with atoms of other elements
Grade 8 Organic Chemistry
Grade 8 Organic Chemistry
Which is a synthetic polymer?
  1. Starch
  2. Cellulose
  3. protein
  4. nylon
Grade 8 Organic Chemistry
What are small units that make up polymers?
  1. monomers
  2. crystals
  3. unit cell
  4. chain
Grade 8 Organic Chemistry
Plastics, paints and DNA are examples of:
  1. Metals
  2. Crystals
  3. Polymers
  4. Metallic bonds
Grade 8 Organic Chemistry
What is another name for carbon compounds?
  1. carbohydrates
  2. fullerenes
  3. hydrocarbons
  4. organic compounds
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