Question

which of the following is true?
a) none of the solutions will conduct electricity because more power is needed.
b) if a covalent compound is soluble in water, it will conduct electricity.
c) all solutions should conduct electricity in water.
d) if an ionic compound is soluble in water, it will conduct electricity.
e) no covalent compounds will conduct electricity.

Explanation:

Ionic compounds dissociate into ions in water, which can carry an electric current. Covalent compounds generally do not dissociate into ions in water and thus do not conduct electricity (except in some special cases like acids which ionize in water). Not all solutions conduct electricity, and it's not about the power needed for conduction.

Answer:

d) If an ionic compound is soluble in water, it will conduct electricity.