Depict the structural formula for compounds 1 to 5. A certain alcohol C4H10O (1) gives a (+) reaction with chromic acid (2), the alcohol (1) produces a white precipitate (3) within a few minutes of the addition of ZnCl2/HCl. While in solution, alcohol (1) doesn't present any optical activity, nevertheless upon chromatography using a chiral stationary phase two products are obtained 4 and 5 which are identical in all physical properties with the exception of the sign in the value of their specific rotation