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Organic Chemistry Questions - All Grades

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Grade 6 Organic Chemistry
Grade 12 Organic Chemistry
Which of the following chemical formulas correctly represents a molecule of 1-propyne?
  1. CH3CH2CH3
  2. CHCCH3
  3. CH2CHCH3
  4. CHCH
Grade 10 Organic Chemistry
Grade 11 Organic Chemistry
Grade 9 Organic Chemistry
Which of the following is NOT an organic molecule?
  1. Enzymes
  2. Insulin
  3. Water
  4. Sucrose
  5. Cellulose
Grade 12 Organic Chemistry
Which of the following alkanes contains a (CH3)2CH- group?
  1. 2, 2-Dimethylpentane
  2. 3,3-Dimethylpentane
  3. 2,3-Dimethylpentane
  4. 3,4-Dimethylhexane
Grade 12 Organic Chemistry
An alkane is obtained by decarboxylation of sodium propionate. The same alkane can be obtained by
  1. catalytic hydrogenation of propene.
  2. action of sodium metal on iodomethane.
  3. reduction of 1-chloropropane.
  4. reduction of bromomethane.
Grade 9 Organic Chemistry
Grade 9 Organic Chemistry
What are compounds called that contain only carbon and hydrogen?
  1. hydrocarbons
  2. organic elements
  3. carcinogens
  4. halides
Grade 11 Organic Chemistry
How would you identify an aliphatic unsaturated hydrocarbon as being an alkyne?
  1. by the presence of at least one triple bond
  2. by the presence of at least two triple bonds
  3. by the presence of at least one double bond
  4. by the presence of at least two double bonds
Grade 11 Organic Chemistry
Grade 10 Organic Chemistry
Enzymes                      chemical reactions in living systems by                       the activation energy.
  1. slow down, decreasing
  2. slow down, increasing
  3. speed up, decreasing
  4. speed up, increasing
  5. stop, eliminating
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
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 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 12 Organic Chemistry
Which of the following alkanes is a liquid at room temperature?
  1. C4H10
  2. C10H22
  3. C22H46
  4. C46H94
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