VSEPR theory?

Question

Use VSEPR theory to predict the electron-pair geometry and the molecular geometry of the nitrite ion, NO2-.

a.The electron-pair geometry is linear, the molecular geometry is linear.

b.The electron-pair geometry is trigonal-planar, the molecular geometry is bent.

c.The electron-pair geometry is trigonal-planar, the molecular geometry is linear.

d.The electron-pair geometry is tetrahedral, the molecular geometry is bent.

e.The electron-pair geometry is tetrahedral, the molecular geometry is linear.

Answer 1

b.The electron-pair geometry is trigonal-planar, the molecular geometry is bent.

Answer 2

The answer is B...the electron-pair geometry is trigonal-planar and the molecular geometry is bent or angular.

Refer to a VSEPR notation table or chart, your chemistry textbook should have one.
NO2- = has 5 valence shell electrons and one lone pair Its VSEPR notation AX2E which indicates that is trigonal planar for its electron group geometry and angular or bent for its molecular geometry.