Treatment of a hydrocarbon A (molecular formula C9H18) with Br2 in the presence of light f...

Treatment of a hydrocarbon A (molecular formula C9H18) with Br2 in the presence of light forms alkyl halides B and C, both having molecular formula C9H17Br. Reaction of either B or C with KOC(CH3)3 forms compound D (C9H16) as the major product. Oionolysis of D forms cyclohexanone and acetone. Identify the structures of A–D.