Organic Chemistry : Organic Chemistry
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Example Questions
Example Question #41 : Organic Functional Groups
What is the general formula of an ether?
Example Question #41 : Organic Functional Groups
List all functional groups in the given molecule.
Ether, carboxylic acid, alkyl halide
Ether, alcohol, Acid anhydride, ketone
Ester, carboxylic acid, alkyl halide, methyl
Ester, alcohol, ketone
Ether, carboxylic acid, alkyl halide
The first carbon that is attached to the chlorine is an alkyl halide. The oxygen that is directly attached to two carbons is an ether. Lastly, the 
Example Question #42 : Organic Functional Groups
Which functional groups are present in the pictured molecule?
Phenyl, aldehyde, amine, acid anhydride
Phenyl, ketone, amine, acid anhydride
Phenyl, ketone, amide, ester
Phenyl, ketone, amine, ester
Phenyl, ketone, amine, acid anhydride
This picture shows each functional group in its own box.
1. Phenyl
2. Ketone
3. Amine
4. Acid anhydride
Example Question #3 : Identifying Other Organic Compounds
Which of the following compounds has the molecular formula, 
Hexyne
Hexene
Benzene
Hexane
Hexene
The molecular formula 
Example Question #4 : Identifying Other Organic Compounds
What kind of organic compounds contain an 
Aldehydes
Ketones
All of these
Alcohols
Alcohols
By definition, alcohols are compounds that contain an 
Example Question #5 : Identifying Other Organic Compounds
Ethanol 
Tertiary alcohol
Primary alcohol
Secondary alcohol
Organic acid
Primary alcohol
Ethanol (or ethyl alcohol) is characterized as a primary alcohol since there is only one carbon-containing group that is directly attached to the carbon containing the 
Example Question #7 : Identifying Other Organic Compounds
What is the unsaturation number of cholic acid (shown), which is a steroid?
The unsaturation number is equal to the number of rings and pi bonds in a molecule. Here, there are 4 rings and 1 double bond, so the unsaturation number is 5. No formula is needed to calculate unsaturation number when a structural formula is given.
Example Question #211 : Organic Chemistry
Which of the following is an appropriate solvent for synthesizing Grignard reagents?
Grignard reagents are very strong bases, and therefore can be spoiled by protons. Grignard reagents are so basic in fact that any protic solvent will render them useless. Dimethyl ether is the only non-protic solvent, and is therefore the correct answer.
Example Question #212 : Organic Chemistry
What is the functional group present in the following molecule known as?
Aldehyde
Ether
Ketone
Carboxylic acid
Ester
Ether
The molecule pictured above is known as an ether because it contains an oxygen atom within the sequence of a carbon chain. (An oxygen atom bonded to two carbons in a carbon chain).
Therefore the correct answer is ether. All other answer choices are carbonyls, meaning that they contain a carbon atom double bonded to an oxygen atom.
Example Question #52 : Organic Functional Groups
I.
II. 
III. 
IV. 
Which option gives the order of decreasing acidity of the molecules provided?
III>IV>II>I
I>III>II>IV
IV>III>I>II
IV>II>III>I
IV>III>I>II
IV>III>I>II
The most acidic compound is option IV because it contains a carboxylic acid group which is the most acidic organic functional group. Phenols are weak acids. Alcohols in solution are slightly less acidic than water and therefore are slightly basic.
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