COMEDK · Chemistry · 17. Solutions
Identify the correct statement
- A At the freezing point of a solution containing a non-volatile solute, the vapour pressure of the liquid solvent becomes less than that of the solid solvent
- B A hypotonic solution is more concentrated with respect to the other solution separated from it by a semi permeable membrane
- C In case of dissociation of solute particles in a solution, the van't Hoff factor is more than unity because the observed molar mass has a lesser value
- D The molal boiling point elevation constant for a solvent is directly proportional to its enthalpy of vaporisation
Answer & Solution
Correct Answer
(C) In case of dissociation of solute particles in a solution, the van't Hoff factor is more than unity because the observed molar mass has a lesser value
Step-by-step Solution
Detailed explanation
At the freezing point of a solution, the vapour pressure of the liquid solvent in the solution is equal to the vapour pressure of the pure solid solvent. Thus, statement (A) is incorrect. A hypotonic solution has a lower osmotic pressure and is less concentrated compared to the…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- A galvanic cell is constructed using the redox reaction,
\(\frac{1}{2} \mathrm{H}_{2}(g)+\operatorname{AgCl}(s) \rightleftharpoons \mathrm{H}^{+}(a q)+\mathrm{Cl}^{-}(a q)+\operatorname{Ag}(s)\)
it is represented asCOMEDK 2013 Easy - An aqueous solution of \(X\) on addition of hydrogen peroxide in ice cold conditions gives blue colour to the ethereal layer. Then, \(X\) can beCOMEDK 2021 Easy
- Choose the incorrect statement from the following.COMEDK 2024 Easy
- Identify the correct statement from the following.COMEDK 2024 Medium
- What would be the cell potential for the Galvanic cell which is represented by the electrochemical reaction:
\(\begin{aligned}
& 2 \mathrm{Cr}_{(\mathrm{S})}+3 \mathrm{Fe}^{2+}(0.02 \mathrm{M}) \rightarrow 2 \mathrm{Cr}^{3+}(0.2 \mathrm{M})+3 \mathrm{Fe} \\
& \mathrm{E}^0 \mathrm{Fe}^{2+} / \mathrm{Fe}=-0.42 \mathrm{~V} \quad \mathrm{E}^0 \mathrm{Cr}^{3+} / \mathrm{Cr}=-0.72 \mathrm{~V}
\end{aligned}\)COMEDK 2025 Medium - Which one of the following is a second order reaction?COMEDK 2020 Medium
More PYQs from COMEDK
- For a cell reaction,
\(A(s)+B^{2+}(a q) \longrightarrow A^{2+}(a q)+B(s)\); the
standard emf of the cell is \(0.295 \mathrm{~V}\) at \(25^{\circ} \mathrm{C}\). The equilibrium constant at \(25^{\circ} \mathrm{C}\) will beCOMEDK 2023 Medium - A line L passes through the point of intersection of the lines \(3x + y - 10 = 0\) and \(x - y - 2 = 0\). If the perpendicular distance of the line L from the point \((5, 1)\) is exactly \(\dfrac{2}{\sqrt{5}}\) units, which of the following represents the correct equation for line L?COMEDK 2026 Medium
- \(\mathrm{A}_3 \mathrm{~B}_4\) is a sparingly soluble salt with a solubility of \(\mathrm{s} g / \mathrm{L}\). If the Molar mass of \(\mathrm{A}_3 \mathrm{~B}_4\) is \(\mathrm{Mg} / \mathrm{mol}\), what is the expression for its \(\mathrm{K}_{\text {sp }}\) ?COMEDK 2024 Medium
- The reverse current in the semiconductor diode changes from \(20 \mu \mathrm{A}\) to \(40 \mu \mathrm{A}\) when the reverse potential is changed from \(10 \mathrm{~V}\) to \(15 \mathrm{~V}\), then the reverse resistance of the junction diode will be :COMEDK 2023 Medium
- The volume of \(10 \mathrm{~N}\) and \(4 \mathrm{~N}\) HCl required to make 1 litre of \(7 \mathrm{~N} \mathrm{HCl}\) areCOMEDK 2020 Hard
- The slant height of a cone is fixed at \(7 \mathrm{~cm}\). If the rate of increase of its height is \(0.3 \mathrm{~cm} / \mathrm{sec}\), then the rate of increase of its volume when its height is \(4 \mathrm{~cm}\) isCOMEDK 2015 Easy