ExamBro
Web Login Download App
ExamBro
Download App
COMEDK · Chemistry · 17. Solutions

From the given aqueous solutions below, arrange them in the order of their increasing boiling points.
(i) \(10^{-4} \mathrm{M} \mathrm{NaCl}\)
(ii) \(10^{-3} \mathrm{M}\) urea
(iii) \(10^{-3} \mathrm{M} \mathrm{MgCl}_2\)
(iv) \(10^{-3} \mathrm{M} \mathrm{NaCl}\)

  1. A (ii) \( \lt \) (i) \(=\) (iii) \( \lt \) (iv)
  2. B (i) \( \lt \) (ii) \( \lt \) (iii) \( \lt \) (iv)
  3. C (i) \( \lt \) (ii) \( \lt \) (iv) \( \lt \) (iii)
  4. D (iv) \( \lt \) (iii) \( \lt \) (ii) \(=\) (i)
Verified Solution

Answer & Solution

Correct Answer

(C) (i) \( \lt \) (ii) \( \lt \) (iv) \( \lt \) (iii)

Step-by-step Solution

Detailed explanation

(i) \(10^{-4} \mathrm{M} \mathrm{NaCl}\) \(\begin{aligned} \mathrm{NaCl} & \longrightarrow \mathrm{Na}^{+}+\mathrm{Cl}^{-} \\ \pi & =i C R T[i=2] \\ \pi & =2 \times 10^{-4} R T \end{aligned}\) (ii) \(10^{-3} \mathrm{M}\) urea \(\pi=1 \times 10^{-3} R T[i=1]\) (iii)…
Same subject

More questions from Chemistry

Explore more questions on app
From COMEDK

More PYQs from COMEDK

Explore more questions on app