A) \[0.430\]
B) \[4.30\]
C) \[3.40\]
D) \[0.043\]
Correct Answer: D
Solution :
\[2.5\,\,m\] aqueous solution means that \[2.5\] moles of solute are present in \[1000\,\,g\] of water. Thus, Moles of solute\[=2.5\] Moles of water\[=\frac{1000}{18}=55.6\] Mole fraction of solute\[=\frac{2.5}{2.5+55.6}=0.043\]
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