Chemistry question?

a certain industrial cleaner and paint solvent was distilled to produce a single compound A. when A reacted with 2,4-dinitrophenylhydrazine, an orange ppt was produced. with alkaline aqueous iodine, A gave a pale yellow ppt and does not react with either warm acidified potium dichromate or with aqueous bromine. reduction of A with H2 produce a 1:1 mixture of B and C with molecular formula of C4H10O