compound a with the formula C3H8O is soluble in wather and reacts with sodium metal,producing bubbles of gas. When compound A is treated with chromic acid (a mixture of Na2Cr2O7 and H2SO4),compound B is formed. Compound B dissolves readily in Na2CO3(aq) and reacts with ethanol,yielding compound C which has a fruity fragrance.Identify compounds A,B,and C.