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MHT CET202526 Apr 2025Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

What is the number of oxygen atoms bonded to chlorine in its strongest oxoacid?

Options

  1. A1
  2. B2
  3. C3
  4. D4

Correct answer

D. 4

Step-by-step solution

The strongest oxoacid of chlorine is perchloric acid ( HClO₄ ), with chlorine as the central atom in a tetrahedral sp^3 hybridization. The structure features one oxygen bonded to both chlorine and hydrogen ( -OH group) and three oxygen atoms double-bonded directly to chlorine. Counting all oxygen atoms directly bonded to chlorine yields 1 (from -OH ) + 3 (from =O ) = 4 .

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