Question

Water is non-electrolyte but conducts electricity on dissolving a small amount of:

• A. $NaCl$
• B. Sugar
• C. Acetone
• D. Oxygen

Answer 1

Answer: (A)

$NaCl$

$NaCl$ in water exits as free ions of $N{a}^{+}\left(aq\right)$ and $C{l}^{-}\left(aq\right)$.

$NaCl\rightleftharpoons N{a}^{+}\left(aq\right)+C{l}^{-}\left(aq\right)$, which conduct electricity. Rest all are covalent compounds.

Hence, option A is correct.