Which of the Following Aqueous Solutions Is Probably the Poorest

Multiple Choice

Which of the following aqueous solutions is probably the poorest electrical conductor?

A) 0.5 M K₂SO₄
B) 0.5 M CaCl₂
C) 0.5 M HF
D) 0.5 M CH₃OH
E) 0.5 M NH₃