JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
The osmotic pressure of a dilute solution of an ionic compound \(XY\) in water is four times that of a solution of \(0.01\,M\,BaCl_2\) in water. Assuming complete dissociation of the given ionic compounds in water, the concentration of \(XY\) (in \(mol\,L^{-1}\)) in solution is
- A \(4\times 10^{-4}\)
- B \(6\times 10^{-2}\)
- C \(16\times 10^{-4}\)
- D \(4\times 10^{-2}\)
Answer & Solution
Correct Answer
(B) \(6\times 10^{-2}\)
Step-by-step Solution
Detailed explanation
\({\pi _{xy}}\, = \,4{\pi _{BaC{l_2}}}\) \({\pi _{xy}}\, = \,iCRT\) \({\pi _{xy}}\,\, = \,2CRT\) \({\pi _{BaC{l_2}}}\, = \,3\, \times \,0.01\,RT\) \(RT\, = \,12\, \times \,0.01RT\) \(\frac{{12 \times 0.01}}{2}\, = \,0.06\)
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