Question

Identify the functional group of CH3COOH, CH3CN, CH3-O-CH3

Answer 1

CH3COOH= carboxylic acid (ethanoic acid)

CH3CN = cyanide/carbonitrile (methyl cyanide)

CH3-O-CH3=ether ( dimethyl ether)

Explanation:

Answer 2

Answer:

A functional group or moiety is a particular group of atoms inside a molecule that is responsible for the molecule's unique chemical reactions. A functional group participates in chemical processes in a predictable manner regardless of molecule size.

Explanation:

CH₃COOH

• Its common name is acetic acid.
• Its molecular formula is C₂H₄O₂.
• The IUPAC name of the acetic acid is ethanoic acid.
• It contains carboxylic acid as the functional group.
• The functional group can be represented as -COOH.

CH₃CN

• Its common name is methyl cyanide.
• Its molecular formula is C₂H₄N.
• The IUPAC name of the methyl cyanide is acetonitrile.
• It contains nitrile as the functional group.
• The functional group can be represented as -CN.

CH₃-O-CH₃

• Its common name is methoxymethane.
• Its molecular formula is C₂H₆O.
• The IUPAC name of the methoxymethane is dimethyl ether.
• It contains ether as the functional group.
• The functional group can be represented as R-O-R where R is the alkyl group.

Hence, the functional group of CH₃COOH, CH₃CN, CH₃-O-CH₃ are the carboxylic acid (-COOH), nitrile (-CN), and ether (R-O-R) repectively.

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