The ratio of the elevation in boiling points of NaCl solution to that of glucose solution of same mo — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

Elevation in boiling point $\Delta T_b = i \times K_b \times m$. NaCl completely dissociates into 2 ions ($i \approx 2$), while glucose is a non-electrolyte ($i = 1$). For the same molality, the ratio of $\Delta T_b$ is $i_{\text{NaCl}} : i_{\text{glucose}} = 2 : 1$. Therefore, correct answer is C.