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Exam 3: Organic Compounds: Alkanes and Their Stereochemistry

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Question 1

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Among the following structures,how many different compounds are represented?

A) 5
B) 4
C) 3
D) 2
E) 1

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Question 2

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Circle and name each functional group in the following structure.

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Question 3

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Instructions: Label each pair of compounds below as:

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following question(s). -

The most stable conformation of an alkane occurs when

Name these groups (left to right) . Where Represents the parent chain.

The carbon atoms within the functional group of the following classifications are: Alkene ester carboxylic acid amide

Choose a correct IUPAC name for:

4-ethyl-3,3,4-trimethylheptane could be classified as:

Pick the set of terms that correctly classifies the compound.

Which hydrogen atom(s) in the following compound is (are) classified as tertiary?

To which functional group classification does the following molecule belong?

Draw the structure of a five carbon ketone containing one tertiary carbon atom.

4-ethyl-3,3,4-trimethylheptane contains:

Instructions: Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. - Refer to instructions.Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram,respectively.

Which of the following Newman projections represents the most stable conformation of 2,3-dimethylbutane?

Which of the following Newman projections does not represent 2-methylhexane?

Which of the following alkanes is the most likely to be a liquid at room temperature?

One of the functional group classifications is characterized by the presence of an sp² hybridized carbon atom.This functional group could be:

Instructions: Experiments have shown that for 1,2-dichloroethane,ClCH₂CH₂Cl,in tetrachloromethane solution at 25 ^$\circ$ C,70% of the molecules are in the anti and 30% are in the gauche conformation.Use this information to answer the following question(s). -Refer to instructions.Draw a Newman projection of the highest energy eclipsed conformation of 1,2-dichloroethane.