Which of the following when dissolved in water forms a solution which is non-conducting? — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Step 1: A solution conducts electricity if it contains mobile ions (electrolytes). Dissolving ionic salts or strong acids/bases in water releases these ions. Step 2: Green vitriol (FeSO4.7H2O), Chile saltpetre (NaNO3), and Potash alum (K2SO4.Al2(SO4)3.24H2O) are all ionic electrolytes that dissociate completely into ions. Alcohol (such as ethanol) is a covalent molecular substance that dissolves via hydrogen bonding but does not ionize. Step 3: Since alcohol does not produce any ions in solution, its aqueous solution is non-conducting, matching option (c).