Which molecule has a tetrahedral electron pair geometry but a trigonal pyramidal molecular shape?
In NF₃ , nitrogen has four electron pairs (three bonding, one lone), giving tetrahedral electron geometry, but the lone pair results in a trigonal pyramidal shape.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: VSEPR Theory and Shapes of Molecules