JEE Main 2010 Chemistry question
If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water , when 0.01 mol of sodium sulphate is dissolved in 1 kg of water, is
Answer: (2)
Solution
Na_2SO_4 \to 2Na^+ + SO_4^{2-}, i = 3. K, option (2).