Skip to main content

The number of pairs of the solution having the same value of the osmotic pressure from the following is (Assume 100% ionization) A. 0.500MC_2 H_5 OH(…

JEE Main 2023 — Chemistry Physical Chemistry

2023integereasy

The number of pairs of the solution having the same value of the osmotic pressure from the following is

(Assume 100100%100 ionization)

A. 0.500MC2H5OH(aq)0.500M{C}_{2}{H}_{5}\mathrm{OH}(\mathrm{aq})0.500MC2​H5​OH(aq) and 0.25MKBr(aq)0.25M\mathrm{KBr}(\mathrm{aq})0.25MKBr(aq)

B. 0.100MK4[Fe(CN)6](aq)0.100{M}_{}{K}_{4}[\mathrm{Fe}(\mathrm{CN}{)}_{6}](\mathrm{aq})0.100M​K4​[Fe(CN)6​](aq) and 0.100M0.100M0.100M FeSO4(NH4)2SO4(aq){\mathrm{FeSO}}_{4}{({\mathrm{NH}}_{4})}_{2}{\mathrm{SO}}_{4}(\mathrm{aq})FeSO4​(NH4​)2​SO4​(aq)

C. 0.05MK4[Fe(CN)6]0.05M{K}_{4}[\mathrm{Fe}(\mathrm{CN}{)}_{6}]0.05MK4​[Fe(CN)6​] (aq) and 0.25MNaCl0.25M\mathrm{NaCl}0.25MNaCl (aq)(\mathrm{aq})(aq)

D. 0.15MNaCl(aq)0.15M\mathrm{NaCl}(\mathrm{aq})0.15MNaCl(aq) and 0.1MBaCl2(aq)0.1M{\mathrm{BaCl}}_{2}(\mathrm{aq})0.1MBaCl2​(aq)

E. 0.02MKCl.MgCl2.6H2O(aq)0.02M\mathrm{KCl}.{\mathrm{MgCl}}_{2}.6{H}_{2}O(\mathrm{aq})0.02MKCl.MgCl2​.6H2​O(aq) and 0.05M0.05M0.05M KCl(aq)\mathrm{KCl}(\mathrm{aq})KCl(aq)

Official previous-year question

Held on 25 Jan 2023 · Verified 6 Jul 2026.

Did you get this right?

Sign in to track your attempts and accuracy.

Your note

Sign in to keep a private note on this question. Nothing you write is ever public.

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Arrange the following isothermal processes in order of the magnitude of the work ($p - V$) involved between states $1$ and $2$. A. Expansion in single stage $w_A$ B. Expansion in multi stages $w_B$ C. Compression in single stage $w_C$ D. Compression in multi stages $w_D$ Choose the correct option.

2026medium

Identify the correct statements from the following: A. Heisenberg uncertainty principle is applicable to electrons. B. The size of $2p_x$ orbital is less than the size of $3p_x$ orbital. C. The energy of $2s$ orbital of H atom is equal to the energy of $2s$ orbital of Li. D. The electronic configuration of Cr is $[\text{Ar}] 3d^5 4s^1$ Choose the correct answer from the options given below:

2026medium

80 mL of a hydrocarbon on mixing with 264 mL of oxygen in a closed U-tube undergoes complete combustion. The residual gases after cooling to 273 K occupy 224 mL. When the system is treated with KOH solution, the volume decreases to 64 mL. The formula of the hydrocarbon is :

2026hard

$19.5$ g of fluoro acetic acid (molar mass $= 78$ g mol$^{-1}$) is dissolved in $500$ g of water at $298$ K. The depression in the freezing point of water was $1°$C. What is $K_a$ of fluoro acetic acid? (For water, $K_f = 1.86$ K kg mol$^{-1}$). Assume molarity and molality to have same values.

2026medium

$M_3 A_2$ is a sparingly soluble salt of molar mass $y$ g mol$^{-1}$ and solubility $x$ g L$^{-1}$. The ratio of the molar concentration of the anion ($A^{3-}$) to the solubility product of the salt is

2026hard

Other Chemistry topics for JEE Main

Keep practicing Physical Chemistry

Work through every JEE Main Physical Chemistry PYQ, year by year.

Browse all Chemistry topics