Multiple Choice
Which of the following is the correct chemical formula for aluminum hydroxide?
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3. Chemical Reactions
Naming Acids
Multiple Choice
Which of the following is the correct name for the acid with the formula H_2SO_3?
A
Sulfic acid
B
Sulfuric acid
C
Hydrosulfuric acid
D
Sulfurous acid
Verified step by step guidance1
Identify the chemical formula given: \(\mathrm{H_2SO_3}\).
Recognize that this formula represents an oxyacid of sulfur, where sulfur is bonded to oxygen and hydrogen atoms.
Recall the naming conventions for oxyacids: acids with '-ic' suffix correspond to the oxyanion with '-ate', and acids with '-ous' suffix correspond to the oxyanion with '-ite'.
Determine the related oxyanion for \(\mathrm{H_2SO_3}\), which is \(\mathrm{SO_3^{2-}}\) (sulfite ion), indicating the acid name should end with '-ous'.
Conclude that the correct name for \(\mathrm{H_2SO_3}\) is 'sulfurous acid', not 'sulfuric acid' (which corresponds to \(\mathrm{H_2SO_4}\)) or the other options.
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