\( 1 \) mol of an octahedral metal complex with formula \( \mathrm{MCl_3 \cdot 2L} \) on reaction with excess of \( \mathrm{AgNO_3} \) gives \( 1 \) mol of \( \mathrm{AgCl} \). The denticity of Ligand \( \mathrm{L} \) is __________. (Integer answer)
