Crystalloids differ from colloids mainly in respect of

a) electrical behavior

b) particle size

c) particle nature

d) solubility

Dear student,

The advantages of crystalloid solutions are:

inexpensive

easy to store with long shelf life

readily available

very low incidence of adverse reactions

a variety of formulations are available

effective for use as replacement fluids or maintenance fluids

no special compatibility testing is required.

no religious objections to their use

In essence they are cheap and effective and don't cause adverse reactions.