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General Organic Chemistry - In Class Quiz #1 with Solution | HCHE 231, Quizzes of Organic Chemistry

Material Type: Quiz; Class: General Organic Chemistry; Subject: Chemistry; University: Morehouse College; Term: Fall 2008;

Typology: Quizzes

Pre 2010

Uploaded on 08/04/2009

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NAME: September 19, 2008
OVER
Chemistry 231 – Elementary Organic Chemistry
In-Class Quiz -- #1
1. (4 pts. total; 2 pts. each) For each of the following questions, circle the BEST
answer.
a. Strongest carbon-carbon bond
CH
3
CH
3
CH
2
CH
2
O
2
C
2
H
2
CO
2
b. Narrowest (smallest) H-Y-H bond angle
CH
4
BH
3
BeH
2
H
2
O
NH
3
2. (3 pts) Nitrous oxide is a second-row triiatomic molecule composed of nitrogen and
oxygen, commonly known as “laughing gas.” It has both an empirical and molecular
formula of N
2
O. In the space provided below, draw the most stable Lewis electron
dot structure for N
2
O. Be certain to indicate formal charges, if any.
Place your answer here
N N
+
O
::
.
.
.
.
pf2

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Download General Organic Chemistry - In Class Quiz #1 with Solution | HCHE 231 and more Quizzes Organic Chemistry in PDF only on Docsity!

NAME: September 19, 2008

OVER 

Chemistry 231 – Elementary Organic Chemistry

In-Class Quiz --

  1. (4 pts. total; 2 pts. each) For each of the following questions, circle the BEST answer.

a. Strongest carbon-carbon bond

CH 3 CH 3 CH 2 CH 2 O 2 C 2 H 2 CO 2

b. Narrowest (smallest) ∠H-Y-H bond angle

CH 4 BH 3 BeH 2 H 2 O NH 3

  1. (3 pts) Nitrous oxide is a second-row triiatomic molecule composed of nitrogen and oxygen, commonly known as “laughing gas.” It has both an empirical and molecular formula of N 2 O. In the space provided below, draw the most stable Lewis electron dot structure for N 2 O. Be certain to indicate formal charges, if any.

Place your answer here

N N

: O

  1. (8 pts total) Acetone is an organic solvent that is a common component of nail polish remover as well as certain brands of paint thinner. It has a chemical formula of CH 3 COCH 3. Carefully examine the structural diagram of acetone given below, then answer the questions which follow:

C

O

C C

H

H H

H

H (^) H

: :

Acetone

a. (2 pt) On the diagram above, draw a square () around an sp^2 hybridized carbon atom.

b. (2 pt) On the diagram above, draw a circle () around a π bond.

c. (2 pt) On the diagram above, draw any valence electrons which are not already indicated explicitly.

d. (2 pt) What is the ∠H-C-C bond angle in acetone? Place your answer in the space provided.

Place your answer here