The shape of NOCl is best described as a trigonal pyramid. The molecule has three atoms bonded to the nitrogen atom, which creates a tetrahedral electron pair geometry. However, one of these electron pairs is a lone pair, which pushes the other three atoms closer together, creating a pyramidal shape.

Bond Angle of NOCl

The bond angle of NOCl is approximately 107 degrees. This is slightly less than the ideal tetrahedral bond angle of 109.5 degrees, due to the presence of the lone pair of electrons on the nitrogen atom. The lone pair of electrons occupies a significant amount of space, pushing the three bonded atoms closer together and causing the bond angles to decrease.

Here's a visualization of the shape and bond angle of NOCl:

[Image of a trigonal pyramid with a lone pair of electrons on the nitrogen atom]

The three atoms bonded to the nitrogen atom (oxygen, chlorine, and the other chlorine) are arranged in a triangular pyramid shape, with the lone pair of electrons occupying the fourth corner. The bond angles between the nitrogen and the three bonded atoms are approximately 107 degrees.