Dieldrin, an insecticide, contains $$ C, H, Cl $$ and $$O$$. Combustion of $$29.72\ mg$$ of Dieldrin gave $$41.21\ mg$$ of $$CO_{2}$$ and $$ 5.63\ mg $$ of $$H_{2}O$$. In a separate analysis, $$25.31\,mg$$ of Dieldrin was converted into $$57.13\ mg$$ of $$AgCl$$. What is the empirical formula of Dieldrin ?