The electron-pair geometry for As in AsO2- istrigonal planar.To determine theelectron-pair geometry, we need to look at the number of electron groups around the central atom, As. In this case, there are three electron groups: two oxygen atoms and one lone pair. Since there are three electron groups, the electron-pair geometry is trigonal planar.The molecular geometry, which describes the shape of the molecule, is also important to consider. In this case, the molecular geometry isbent or angular, since the lone pair on the As atom pushes the oxygen atoms closer together. In summary, the electron-pair geometry for As in AsO2- is trigonal planar, while the molecular geometry is bent or angular.Learn more aboutatomat:brainly.com/question/20214648#SPJ11...

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