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Question 17

Compare the structures of H2O and H2O2.

Answer

In gaseous phase, water molecule has a bent form with a bond angle of 104.5°. The O-H bond length is 95.7 pm. The structure can be shown as:

Hydrogen peroxide has a non-planar structure both in gas and solid phase. The dihedral angle in gas and solid phase is 111.5° and 90.2° respectively.

 

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