JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
Evaluate the following statements for their correctness. \((A)\) The elevation in boiling point temperature of water will be same for \(0.1 M NaCl\) and \(0.1 M\) urea. \((B)\) Azeotropic mixtures boil without change in their composition \((C)\) Osmosis always takes place from hypertonic to hypotonic solution \((D)\) The density of \(32 \% H _2 SO _4\) solution having molarity \(4.09\,M\) is approximately \(1.26\,g\,mL ^{-1}\) \((E)\) A negatively charged sol is obtained when \(KI\) solution is added to silver nitrate solution. Choose the correct answer from the options given below :
- A \(B, D\) and \(E\) only
- B \(A, B\) and \(D\) only
- C \(A\) and \(C\) only
- D \(B\) and \(D\) only
Answer & Solution
Correct Answer
(D) \(B\) and \(D\) only
Step-by-step Solution
Detailed explanation
\((A)\) \(\Delta T _{ b } \propto i \times c\) \((B)\) Azeotropic mixtures have same composition in both liquid and vapour phase. \((C)\) Osmosis always takes place from hypotonic to hypertonic solution. \((D)\) \(M =\frac{30 \times 10 \times 1.26}{98} \approx 4.09\,M\) \((E)\)…
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