All of the Following Statements Concerning Sodium Are Correct EXCEPT

Multiple Choice

All of the following statements concerning sodium are correct EXCEPT

A) most sodium compounds are water soluble.
B) sodium is soft and easily cut with a knife.
C) sodium is usually found in nature as the reduced metal or as a sulfide salt.
D) sodium ions help regulate osmotic pressure in the human body.
E) sodium is commercially prepared by electrolysis of molten NaCl.