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| 1. |
Compare the structure of H_(2)O and H_(2)O_(2) . |
| Answer» Solution :In water , O is `sp^(3)` -hydridized . Due to stronger lone PAIR-lone pair repulsions than BOND pair-bond pair repulsions, the HOH bond angle decreases from `109.5^(@) ` to `104.5^(@)` . Thus, water is a bent molecule . `H_(2)O_(2)` has a non-planar structure . The two oxygen atoms are linked to each other by a SINGLE covalent bond (i.e., peroxide bond) and each oxygen is further linked to a hydrogen atom by a single covalent bond.d The two O-H bonds are, however, in different planes. The DIHEDRAL angle between the two planes being `111.5^(@)` in the gas phase . Thus, the structure of `H_(2)O_(2)` is like that of an open book. | |