Questions: Which one of the following is a diprotic acid? (A) nitric acid (B) chloric acid (C) phosphoric acid (D) hydrofluroric acid (E) sulfuric acid

Which one of the following is a diprotic acid? (A) nitric acid (B) chloric acid (C) phosphoric acid (D) hydrofluroric acid (E) sulfuric acid
Transcript text: Which one of the following is a diprotic acid? (A) nitric acid (B) chloric acid (C) phosphoric acid (D) hydrofluroric acid (E) sulfuric acid
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Solution

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Solution Steps

Step 1: Identify the Definition of a Diprotic Acid

A diprotic acid is an acid that can donate two protons (hydrogen ions, \(H^+\)) per molecule in an aqueous solution.

Step 2: Analyze Each Option
  • Nitric acid (HNO\(_3\)): This is a monoprotic acid, as it can donate only one proton.
  • Chloric acid (HClO\(_3\)): This is also a monoprotic acid, donating only one proton.
  • Phosphoric acid (H\(_3\)PO\(_4\)): This is a triprotic acid, capable of donating three protons.
  • Hydrofluoric acid (HF): This is a monoprotic acid, donating only one proton.
  • Sulfuric acid (H\(_2\)SO\(_4\)): This is a diprotic acid, capable of donating two protons.
Step 3: Select the Correct Answer

Based on the analysis, sulfuric acid (H\(_2\)SO\(_4\)) is the diprotic acid among the given options.

Final Answer

\(\boxed{\text{E}}\)

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