See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Hydrolysis of SbCl3 3 2 SbCl H O SbO Cl HCl SbO 3Cl          NF3 does not undergo hydrolysis, due to high N – F bond strength. Pentahalides are thermally less stable than the corresponding trihalides, e.g. thermal stability of PCl3 is less than PCl5 5 3 2 PCl PCl Cl   