According to the vapor pressure graph above, at 20°C, which substances would have weaker intermolecular forces than diethyl ether?
A)
butane and propane
B)
butane and 2-heptene
a)
methyl acetate and fluorobenzene
D)
neo pentane and 2-heptene

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.