Organic chemistry Portage learning division Geneva college
Question type breakdown
Fill in the blank, matching, multiple choice and short answer:
Short answer questions*: refer to answer key for short answer questions however
examinees are strongly encouraged to answer them in their own words.
True and false:
Additional course information: This class is not inherently any more difficult than other courses, focus on
understanding concepts, problem solving and study each one of these questions thoroughly.
Good luck!
Fill in the blank, matching, multiple choice and short answers
Work out Lewis Dot structures on your scratch paper and provide the following below for each of the
given elements by completing the table:
a) The number of Lone Pairs the atom possesses in its valence shell.
b) The number of Unpaired Electrons the atom possesses in its valence shell.
c) The number of bonds the atom will form.
Oxygen
Carbon
Hydrogen
Nitrogen
Fluorine
Phosphorus
Lithium
Nitrogen
Sulfur
Sodium
Selenium
, Aluminum
Boron
Bromine
Silicon
Oxygen - a) 2 b) 2 c) 2
Carbon - a) 0 b) 4 c) 4
Hydrogen- a) 0 b) 1 c) 1
Nitrogen - a) 1 b) 3 c) 3
Fluorine: 7, 3, 1, 1
Phosphorus: 5, 1, 3, 3
Lithium: 1, 0, 1, 1
Nitrogen: 5, 1, 3, 3
Sulfur: 6, 2, 2, 2
Sodium 1,0,1,1
Selenium 6,2,2,2
Aluminum 3,0,3,3
Boron 6,2,2,2
Bromine 7,3,1,1
Silicon 4,0,4,4
Only a set of 4-5 elements from the list above will show up on exam. I have included others that have
also appeared on exams*
Classify the bonding between the given pairs of atoms as ionic, covalent, or polar covalent. A table of
electronegativity will be provided on exam*
a) Br-Br: 0 = PURELY COVALENT
b) K-Cl: 2.2 = IONIC
c) P-Cl: 0.9 = POLAR COVALENT
d) C-O: 1.0 = POLAR COVALENT
e) Na-Br: 1.8 = POLAR COVALENT
a)O-S: 1.0= polar covalent
b)Cl-O: 0.5= covalent
c)P-P: 0= purely covalent
d)Li-Br: 1.8=polar covalent
e)N-Al:1.5=polar covalent