The correct option is B C5H10O5
C5H10O5 contains the greatest amount of oxygen by weight.
The molecular weight of C5H10O5 is 5(12)+10(1)+5(16)=150 g/mol.
The weight percent of oxygen is 5(16)150×100=53.3 %
For
C3H6O5Cl, the weight
percent of oxygen is 5(16)3(12)+6(1)+5(16)+35.5×100=50.8%
For C3H6O2, the weight percent of oxygen is 2(16)3(12)+6(1)+2(16)×100=43.2 %
For, C4H8O3 the weight percent of oxygen is 3(16)4(12)+8(1)+3(16)×100=46.2 %