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Chemistry
List of top Chemistry Questions on Colligative Properties asked in AP EAPCET
At 298 K, if the vapour pressure of pure liquids toluene, benzene, chloroform and dichloromethane are 60, 160, 200 and 415 torr respectively. Then which liquid is having high boiling point?
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
When \(10^{-3} \, M\) solution of glucose in water freezes at -0.0186°C, then at what temperature \(10^{-3} \, M\) solution of NaCl will freeze?
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
What is the depression of freezing point, when mole fraction of non-electrolyte solute in aqueous solution is 0.01? ($ K_f $ of $ \text{H}_2\text{O} = 1.86 \, \text{K kg mol}^{-1} $)
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
Molar depression constant (\(K_f\)) is dependent on
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
6 g of a non-volatile solute (x) is dissolved in 100 g of water. The relative lowering of vapour pressure of resultant solution is 0.006. What is the molar mass (in g mol\textsuperscript{–1}) of x?
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
The molality of solution, when 18 g of glucose is added to 18 g of H2O is:
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
What is the van't Hoff factor of Ferric Sulphate (Assume 100% ionization)?
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
In a freezing point experiment, aqueous acetic acid solution gave $\Delta T_f$ (observed) = 0.02 K. Calculated $\Delta T_f$ for the same solution was found to be 0.018 K.
What is the van't Hoff factor of acetic acid?
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
At $T$ (K), 1 mol of benzene is mixed with 1 mol of toluene. The mole fraction of benzene and toluene in its vapour state is respectively
($P^0_{\text{Benzene}} = 160$ torr, $P^0_{\text{Toluene}} = 60$ torr)
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
At 293 K, the Henry law constant in water for N$_2$ and O$_2$ are 76.48 k bar and 34.86 k bar respectively. What is the ratio of mole fractions of N$_2$ and O$_2$ in water? (Assume partial pressures of N$_2$ and O$_2$ same at 293 K)
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
What is the osmotic pressure (in atm) of 0.02M aqueous glucose solution at 300 K? (R=0.082 L atm mol\(^{-1} \)K\(^{-1} \))
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
The elevation in the boiling point of aqueous urea solution is 0.104 K. What is its \( \Delta T_f \) (in K) value? (for Water \( K_b = 0.52 \) K kg mol\(^{-1} \), \( K_f = 1.86 \) K kg mol\(^{-1} \))
AP EAPCET - 2023
AP EAPCET
Chemistry
Colligative Properties
At \(298\ K\), vapour pressures of two pure liquids A and B are \(200\) and \(400\ \text{mm Hg}\) respectively. If mole fractions of A and B in solution are \(0.7\) and \(0.3\) respectively, what is the mole fraction of B in vapour phase?
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
The freezing point depression of a solution containing \(0.6\ \text{g}\) of urea \((\text{molar mass}=60\ \text{g mol}^{-1})\) in \(100\ \text{g}\) of benzene is in K \((K_f=4.0\ \text{K kg mol}^{-1})\):
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
At \(298K\), the vapour pressure of pure water is \(25\ torr\). The vapour pressure of water, when \(12\ g\) of urea \((\text{molar mass }=60\ g\ mol^{-1})\) and \(36\ g\) of glucose \((\text{molar mass }=180\ g\ mol^{-1})\) is dissolved in \(100\ g\) of water at the same temperature \((in\ torr)\) is
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
Which of the following solution has the highest freezing point?
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
\(0.05\) mole of a non-volatile solute is dissolved in \(500\,g\) of water. What is the depression in freezing point of resultant solution?
\((K_f(H_2O)=1.86\,K\,kg\,mol^{-1})\)
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
0.05 mole of a non-volatile solute is dissolved in 500 g of water. What is the depression in freezing point of the resultant solution? ($K_f(\text{H}_2\text{O}) = 1.86 \, \text{K kg mol}^{-1}$)
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
Which of the following pair of solutions is isotonic?
(A) 18 g/L of glucose and 6 g/L of urea solution
(B) 10 g/L of glucose and 10 g/L of urea solution
(C) 0.01 M NaOH and 0.02 M glucose solution
(D) 0.01 M NaCl and 0.01 M glucose solution (NaCl undergoes complete dissociation)
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
Which of the following condition is correct for reverse osmosis?
AP EAPCET - 2022
AP EAPCET
Chemistry
Colligative Properties
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