Question

Trichlorides in decreasing order of bond angle ncl3, pcl3, ascl3,sbcl3

Answer 1

if hybridization and lone pairs that same then check electronegativity of central atom the atom which will have higher electronegativity it will have more bond angle and vice versa

order of bond length
NCl3 > PCl3 >AsCl3 >SbCl3