Which is strongest acid?

Correct answer: D. HClO4

  • A. HClO
  • B. HClO2
  • C. HClO3
  • D. HClO4

Explanation

HClO4 (perchloric acid): This acid is the strongest among the options. It is a highly corrosive and reactive acid. Perchloric acid is a strong oxidizing agent and is used in laboratories for various purposes. Therefore, the correct answer is "HClO4" (perchloric acid) as it is the strongest acid among the given options.

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