M7 OC Revision

These online quizzes provide immediate feedback:

• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol1/mcquestions317a.htm Q1-3 (if you do 4, remember that a double bond has a sigma plus a pi bond)
• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol2/mcquestions317b.htm 1,8
• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol4/mcquestions317d.htm 3,4
• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol6/mcquestions317f.htm 2
• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol10/mcquestions317j.htm 1,2
• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol11/mcquestions317k.htm 3
• https://chemistry.boisestate.edu/richardbanks/organic/mc/vol15/mcquestions317o.htm 2

Let's first study the rules for drawing Lewis Dot structures.

1. The first electron-dot formula we will try will be CH₄ (methane).

2. Now let's try a compound that has non-bonding electron pairs, H₂O (water).

3. Next we should try an ion with a negative charge, HO^- (hydroxide ion).

4. How about an ion with a positive charge, NH₄⁺ (ammonium ion).

5. Finally, let's draw a compound that requires multiple bonds, O₂ (oxygen).