Purification and Characterisation of Organic Compounds: JEE Main 2026 Chemistry question

Sodium fusion extract of an organic compound (Y) with $\mathrm{CHCl_3}$ and chlorine water gives violet color to the $\mathrm{CHCl_3}$ layer. 0.15g of (Y) gave 0.12 g of the silver halide precipitate in Carius method. Percentage of halogen in the compound (Y) is ______. (Nearest integer) (Given : molar mass $\mathrm{g\,mol^{-1}}$ C : 12, H : 1, Cl : 35.5, Br : 80, I : 127)