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Multiple Choice
Which of the following functional groups is commonly involved in hydrogen bonding due to its ability to donate a hydrogen atom?
A
Methyl group (-CH3)
B
Hydroxyl group (-OH)
C
Nitro group (-NO2)
D
Carbonyl group (C=O)
Verified step by step guidance
1
Identify the functional groups listed in the problem: Methyl group (-CH3), Hydroxyl group (-OH), Nitro group (-NO2), and Carbonyl group (C=O).
Understand the concept of hydrogen bonding: Hydrogen bonding occurs when a hydrogen atom, covalently bonded to a highly electronegative atom like oxygen, nitrogen, or fluorine, interacts with another electronegative atom.
Analyze each functional group for the presence of a hydrogen atom bonded to an electronegative atom: The hydroxyl group (-OH) has a hydrogen atom bonded to an oxygen atom, which is highly electronegative.
Compare the ability of each functional group to participate in hydrogen bonding: The hydroxyl group can donate a hydrogen atom for hydrogen bonding due to the presence of the O-H bond.
Conclude that the hydroxyl group (-OH) is commonly involved in hydrogen bonding because it can donate a hydrogen atom, unlike the other groups listed.