MEDAL & FAN ANYBODY ?
One way to distinguish between a mixture and a pure substance is _______________________.
a. a mixture can always be separated into its constituent parts using a medium-holed sieve.
b. a mixture has solid components in it.
c. a pure substance only takes the form of a gas or liquid of uniform color.
d. a pure substance cannot be separated by physical means.

Question

MEDAL & FAN ANYBODY ?
One way to distinguish between a mixture and a pure substance is _______________________.
a. a mixture can always be separated into its constituent parts using a medium-holed sieve.
b. a mixture has solid components in it.
c. a pure substance only takes the form of a gas or liquid of uniform color.
d. a pure substance cannot be separated by physical means.

anonymous · Answer

a mixture contains more than one substance and the method to separate it into its constituent components depends on the type of components present in the mixture.
A pure substance,as the name suggests,is totally pure,i.e.it has only one component and therefore it cannot be separated into further more components.
Hence the correct answer is (d)