From the following list of aqueous solutions and water, select the one with the lowest freezing point.

(A) 1.0 m LiClO4
(B) 1.5 m CH3OH, methyl alcohol
(C) 0.75 m (NH4 )3PO4
(D) pure water
(E) 1.0 m CaSO4

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

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