August 2015 Chemistry Regents #79-80

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Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Questions 51-54 Questions 55-57 Questions 58-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-74  Questions 75-76  Questions 77-78  Questions 79-80  Questions 81-82  Questions 83-85

 

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Question 79-80

 

 

Base your answers to questions 79 and 80 on the information below and on your knowledge of chemistry.

Two organic compounds, geraniol and linalool, can be represented by the molecular formula C10H18O. Geraniol has an odor similar to the scent of roses and linalool has an odor similar to the scent of citrus fruits. Both compounds are nearly insoluble in water. The structural formulas of geraniol and linalool are shown below.

79 Write the name of the class of organic compound to which both geraniol and linalool belong. [1]

Answer-->  alcohol

80 Explain, in terms of molecular polarity, why geraniol and linalool are nearly insoluble in water. [1]

Answer-->  Water molecules are polar. Geraniol and linalool molecules are primarily nonpolar.

on to Questions 81-82

 

 

Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Questions 51-54 Questions 55-57 Questions 58-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-74  Questions 75-76  Questions 77-78  Questions 79-80  Questions 81-82  Questions 83-85

 

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