1. Tardigrade
  2. Question
  3. Chemistry
  4. 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 :

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Q. 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 :

JEE MainJEE Main 2023Solutions

Solution:

(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) When $KI$ solutions is added to $AgNO _3$ solution, positively charged solution results due to adsorption of $Ag ^{\circ}$ ions from dispersion medium
$AgI / Ag ^{+}$
Positively charged