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Ninth Grade (Grade 9) Organic Chemistry Questions

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Grade 9 Organic Chemistry
Sucrose is a                                 , while starch is a                                 .
  1. monosaccharide; polycarbohydrate
  2. disaccharide; polysaccharide
  3. monosaccharide; disaccharide
  4. monosaccharide; carbohydrate
  5. monosaccharide; polysaccharide
Grade 9 Organic Chemistry
Which of the following organic compounds is the main fuel supply for cellular work?
  1. sugars
  2. lipids
  3. nucleic acids
  4. proteins
Grade 9 Organic Chemistry
Which of the following is NOT an organic molecule?
  1. Enzymes
  2. Insulin
  3. Water
  4. Sucrose
  5. Cellulose
Grade 9 Organic Chemistry
Which type of hydrocarbon is represented in the diagram?
Formula - Alkane
  1. alkane
  2. alkyne
  3. alkene
  4. alkone
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
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
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
Enzymes are found in household detergents. Many manufacturers claim they will get rid of grease, making your clothes look cleaner. Which of the following statements is true concerning enzymes that may suggest why manufacturers use them in their products?
  1. All enzymes work on dirt and grease.
  2. Enzymes are specific as to what they work on.
  3. Enzymes cannot be used over and over again.
  4. One type of enzyme can work on all types of chemicals.
Grade 9 Organic Chemistry
What are the hydrocarbons called that provide living things with the most energy?
  1. lipids
  2. proteins
  3. nucleic acids
  4. carbohydrates
Grade 9 Organic Chemistry
A substance that contains carbon is                .
  1. organic
  2. inorganic
  3. biogenesis
  4. valid
Grade 9 Organic Chemistry
What shape do aromatic hydrocarbons form?
  1. rings
  2. chains
  3. branched chains
  4. spirals
Grade 9 Organic Chemistry
Which of the following terms include all of the other terms on this list?
  1. Phospholipid
  2. Lipid
  3. Steroid
  4. Wax
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