June 2015 Chemistry Regents #16-20

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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 51-53 Questions 54-56 Questions 57-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-75  Questions 76-79  Questions 80-82  Questions 83-85

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Questions

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Explanations

16. Which group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules?

(1) oxygen           (3)  sulfur

(2) selenium          (4) tellurium

1 Link H-bonding

H with F,O or N

17.  Hydrocarbons are composed of the elements

(1) carbon and hydrogen, only

(2) carbon and oxygen, only

(3) carbon, hydrogen and oxygen

(4) carbon, nitrogen and oxygen

1 Link  Definition- only Hydrogen and carbon
18. Which atom is bonded to the carbon atom in the functional group of a ketone?

(1) fluorine          (3) nitrogen

(2) hydrogen       (4)  oxygen

4 Link  Table R

 

19.   Two types of organic reactions are

(1) addition and sublimation

(2) deposition and saponification

(3) decomposition and evaporation

(4)  esterification and polymerization

4 Link

Link2

 
esterification and polymerization

just had to know it

20. The isomers butane and methylpropane have

(1) the same molecular formula and the same properties

(2)  the same molecular formula and different properties

(3) a different molecular formula and the same properties

(4) a different  molecular formula and different properties

2 Link  different structures= different properties

 

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 51-53 Questions 54-56 Questions 57-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-75  Questions 76-79  Questions 80-82  Questions 83-85

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