The structure of a molecule like CH 2O (AX 3), whose double bond repels single bonds more potently than single bonds repel each other, is given below. As a result, the geometry is not perfect.
A molecule shape's actual bond angles can differ for a variety of reasons. The size of the participating atoms, the presence of lone pairs, numerous bonds, and big groups bound to the core atom
Since a lone pair of electrons requires more space than a bonding pair does, the molecular geometry is altered to provide the lone pair with more room, which leads to narrower bond angles than in the ideal geometry.
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