Compound j, c16h16br2, is optically active. on treatment with strong base, compounds k and l (each c16h14) are formed; k and l each absorb only 2 equivalents of hydrogen when reduced over a pd/c catalyst. compound k reacts with ozone to give phenylacetic acid (c6h5ch2cooh), while similar treatment of l gives 2 products. one product, m, is an aldehyde with formula c7h6o; the other product is glyoxal (cho)2. draw the structure of compound m.