Question

Which of the following is a poor conductor of electricity?

• A. $C{H}_{3}COONa$
• B. $C_2{H}_{5}OH$
• C. $NaCl\left(aq\right)$
• D. $KOH\left(aq\right)$

Answer 1

The correct option is B $C_2{H}_{5}OH$

All others except B are ionic compounds.

$C{H}_{3}COONa$ exists as $C{H}_{3}CO{O}^{-}N{a}^{+}$ in aqueous solution.

$NaCl$ exists as $N{a}^{+}C{l}^{-}$ in aqueous solution.

$KOH$ exists as $K^{+}O{H}^{-}$ in aqueous solution.

We know that, ionic compounds are soluble in water while covalent compounds are not.

B is a covalent compound so it will not dissolve in water.

So, B is the correct answer.