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JEE Main20231 Feb 2023Evening ShiftChemistryHydrogenActual

O - O bond length in H 2 O 2 is X ¯ than the O - O bond length in F 2 O 2 . The O - H bond length in H 2 O 2 is Y ¯ than that of the O - F bond in F 2 O 2 . Choose the correct option for X ¯ and Y ¯ from the given below.

Options

  1. AX - shorter, Y - shorter
  2. BX -shorter, Y -longer
  3. CX -longer,    Y -longer
  4. DX -longer, Y - shorter

Correct answer

D. X -longer, Y - shorter

Step-by-step solution

According to bent rule more electronegative atom occupy less s-character so bond length increases. O - H bond will be short than O - F bond due to small size of H than F . Correspondingly, O - O bond in hydrogen peroxide will be shorter than that of O 2 F 2 . Corresponding structures are:

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