The bond angle in NCl3 (nitrogen trichloride) is approximately 107 degrees.
This bond angle can be explained by the molecular geometry of NCl3. The nitrogen atom is at the center, with three chlorine atoms bonded to it. Due to the presence of a lone pair of electrons on the nitrogen atom, the molecule adopts a trigonal pyramidal shape. The lone pair repels the bonding pairs of electrons, leading to a bond angle that is slightly less than the ideal tetrahedral angle of 109.5 degrees. This is why the bond angle in NCl3 is around 107 degrees.