The respective molecular geometries of the central atoms in the molecule are; trigonal planar / bent (109.5°) /tetrahedral.
We know that the shape of molecules depends on the number of electron pairs that surround the central atoms in a molecule. In the molecule (CHO)OCH3, there are three central atoms.
From the Lewis structure of the molecule (CHO)OCH3 shown in the image attached, we can clearly see that the respective geometries of the central atoms in the molecule is; trigonal planar / bent (109.5°) /tetrahedral.
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