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ORGANIC CHEMISTRY MCQs

Total Questions : 25 | Page 2 of 3 pages
Question 11. How many inorganic materials do we have approx?
  1.    1000
  2.    10000
  3.    100000
  4.    10000000
 Discuss Question
Answer: Option C. -> 100000
Question 12. Carbon has three forms (allothrops)
  1.    Diamond
  2.    Coal
  3.    Granite
  4.    Graphite
 Discuss Question
Answer: Option C. -> Granite
Question 13. How many organic materials do we have approx?
  1.    100.000
  2.    1000.000
  3.    100.000.000
  4.    1000.000.000
 Discuss Question
Answer: Option C. -> 100.000.000
Question 14. Which type of bonding is present within organic molecules?
  1.    Covalent bond
  2.    Ionic bond
  3.    Metallic bond
  4.    Hydrogen bond
 Discuss Question
Answer: Option A. -> Covalent bond
Question 15. Which list does NOT contain compounds found in the same homologous series?
  1.    methane, ethane, propane, butane
  2.    Pentane, hexanol, heptane, octane
  3.    nonane, decane, undecane, dodecane
  4.    tridecane, tetradecane, pentadecane, hexadecane
 Discuss Question
Answer: Option B. -> Pentane, hexanol, heptane, octane
Question 16. Which is the correct general formula for the alkanes?
  1.    CnH2n+2
  2.    CnH2n
  3.    CnH2n+1OH
  4.    CnH2n+1COOH
 Discuss Question
Answer: Option A. -> CnH2n+2
Question 17. The first four alkanes are listed below
  1.    methane, ethane, propane, butane
  2.    ethane, methane, propane, butane
  3.    methane, ethane, butane, propane
  4.    methane, propane, ethane, butane
 Discuss Question
Answer: Option A. -> methane, ethane, propane, butane
Question 18. Alkane molecules are made of which elements?
  1.    Carbon and hydrogen
  2.    Carbon, hydrogen and oxygen
  3.    Carbon and oxygen
  4.    Carbon, nitrogen and hydrogen
 Discuss Question
Answer: Option A. -> Carbon and hydrogen
Question 19. All molecules of the alkane homologous series have which ending in their name?
  1.    -ane
  2.    -ene
  3.    -anol
  4.    -anoic acid
 Discuss Question
Answer: Option A. -> -ane
Question 20. Organic compounds made only of the elements carbon and hydrogen are called
  1.    Hydrocarbons
  2.    Carbohydrogens
  3.    Carbohydrates
  4.    Hydrocarbonates
 Discuss Question
Answer: Option A. -> Hydrocarbons

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