JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
\(C _{6} H _{6}\) freezes at \(5.5^{\circ} C\). The temperature at which a solution \(10\, g\) of \(C _{4} H _{10}\) in \(200\, g\) of \(C _{6} H _{6}\) freeze is ...... \({ }^{\circ} C\). (The molal freezing point depression constant of \(C _{6} H _{6}\) is \(5.12\,{ }^{\circ} C / m .\) )
- A \(3\)
- B \(1\)
- C \(5\)
- D \(9\)
Answer & Solution
Correct Answer
(B) \(1\)
Step-by-step Solution
Detailed explanation
Pure Solvent : \(C _{6} H _{6}(\ell)\) Given : \(T _{ f }^{\circ}=5.5^{\circ} C\) \(K _{ f }=5.12^{\circ}\,C / m\) \(\because \Delta T _{ f }= k _{ f } \times m\)…
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