Which solution has the lowest freezing point at standard pressure? 0.1 M KCl(aq)
0.1 M K2S04(aq)
0.1 M K3P04(aq)
0.1 M KNO3(aq)

ill try to . no promises tho.

explanation:

the answer to this question is 3.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.