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Ninth Grade (Grade 9) Organic Chemistry Questions

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Grade 9 Organic Chemistry
Grade 9 Organic Chemistry
Which of the following is NOT TRUE about Carbon atoms?
  1. A carbon atom has four valence electrons and can form four covalent bonds.
  2. Carbon atoms are not found in organic molecules
  3. Carbon atoms can form bonds with other carbon atoms to make many different structures.
  4. Carbon atoms can form double and triple bonds.
Grade 9 Organic Chemistry
Why does carbon especially like to make covalent bonds?
  1. Same Formula can be different things
  2. 4 electrons in the outer shell lose/gain e-? No it shakes e-
  3. Taking water from 2 small molecules + building a bigger molecule
  4. Adding water to a big molecule
Grade 9 Organic Chemistry
What are compounds called that contain only carbon and hydrogen?
  1. hydrocarbons
  2. organic elements
  3. carcinogens
  4. halides
Grade 9 Organic Chemistry
Grade 9 Organic Chemistry
Grade 9 Organic Chemistry
What shape do aromatic hydrocarbons form?
  1. rings
  2. chains
  3. branched chains
  4. spirals
Grade 9 Organic Chemistry
What evidence supports the claim that the diagram represents an alkyne?
Formula - Alkyne
  1. The diagram has two carbon molecules.
  2. The diagram uses single bonds to attach functional groups.
  3. The diagram has a triple bond between carbon molecules.
  4. The diagram shows the formula for a simple carbohydrate.
Grade 9 Organic Chemistry
Which of these is a common application for the polymer shown in the image?
Formula - Poly Vinyl Chloride
  1. styrofoam cups
  2. cooking utensils
  3. garden hoses
  4. food containers
Grade 9 Organic Chemistry
What is the most common way to dispose of the synthetic polymer shown in the image?
Formula - Polyethylene
  1. It is burned
  2. It is recycled
  3. It is chopped up
  4. It is buried
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