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Multiple Choice
Which of the following reactions is most consistent with that of a base?
A
NH4+ β NH3 + H+
B
H2CO3 β HCO3- + H+
C
NaOH β Na+ + OH-
D
HCl β H+ + Cl-
Verified step by step guidance
1
Identify the definition of a base in chemistry: A base is a substance that can accept hydrogen ions (H+) or release hydroxide ions (OH-) in solution.
Examine each reaction to determine if it involves the release of hydroxide ions (OH-) or the acceptance of hydrogen ions (H+).
Analyze the first reaction: NH4+ β NH3 + H+. This reaction involves the release of a hydrogen ion (H+), which is characteristic of an acid, not a base.
Analyze the second reaction: H2CO3 β HCO3- + H+. This reaction also involves the release of a hydrogen ion (H+), indicating acidic behavior.
Analyze the third reaction: NaOH β Na+ + OH-. This reaction involves the release of hydroxide ions (OH-), which is consistent with the behavior of a base.