Chemistry · 2023
JEE Main · 25 January 2023, Shift 2 · Q54
The number of pairs of the solutions having the same value of the osmotic pressure from the following is ____. (Assume 100% ionization) A. 0.500 M…
The number of pairs of the solutions having the same value of the osmotic pressure from the following is $\displaystyle \_\_\_\_$.
(Assume $\displaystyle 100$% ionization)
A. $\displaystyle 0.500 \mathrm{M} \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}(\mathrm{aq})$ and $\displaystyle 0.25 \mathrm{M} \mathrm{KBr}(\mathrm{aq})$
B. $\displaystyle 0.100 \mathrm{M} \mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ (aq) and $\displaystyle 0.100 \mathrm{M} \mathrm{FeSO}_4\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4(\mathrm{aq})$
C. $\displaystyle 0.05 \mathrm{M} \mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right](\mathrm{aq})$ and $\displaystyle 0.25 \mathrm{M} \mathrm{NaCl}(\mathrm{aq})$
D. $\displaystyle 0.15 \mathrm{M} \mathrm{NaCl}(\mathrm{aq})$ and $\displaystyle 0.1 \mathrm{M} \mathrm{BaCl}_2(\mathrm{aq})$
E. $\displaystyle 0.02 \mathrm{M} \mathrm{KCl} . \mathrm{MgCl}_2 .6 \mathrm{H}_2 \mathrm{O}(\mathrm{aq})$ and $\displaystyle 0.05 \mathrm{M} \mathrm{KCl}(\mathrm{aq})$
Official answer
From NTA’s final answer key for this paper.
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.