An unknown compound (P) of molecular formula C10H18O reacts with H2SO4 to form two compound (Q) and (R) of molecular formula C10H16. Both (Q) and (R) react with H2 in presence of Pd−C to form decalin. Ozonolysis of (Q) forms a diketone (S) of molecular formula C10H16O2.
Which of the following represents incorrect structure?