MHT CET questions
29293 published questions with worked solutions.
- In a 0.2 molal aqueous solution of a weak acid HX, the degree of ionisation is 0.3. Taking K_f for water as 1.85, the freezing...
- By dissolving 5 g substance in 50 g of water, the decrease in freezing point is 1.2^ C . The gram molal depression is 1.85^ C ....
- The vapour pressure of pure liquid is 1.2 atm. When a non-volatile substance B is mixed in A, then its vapour pressure becomes...
- How much C_2H_5OH must be added to 1.0 L of H_2O . So that solution should not freeze at -4^ F ? [K_f( C_2H_5OH ) = 1.86^ C/m ]
- If sodium sulphate is considered to be completely dissociated into cation and anion in aqueous solution, the change in freezing...
- The vapour pressure of water at 20^ C is 17.5 mmHg. If 18 g of glucose ( C_6H_ 12 O_6 ) is added to 178.2 g of water at 20^ C ,...
- An aqueous solution of 2% (wt/wt) non-volatile solute exerts a pressure of 1.004 bar at the boiling point of the solvent. What is...
- On mixing heptane and octane, form an ideal solution at 373 K, the vapour pressures of the two liquid components (heptane and...
- Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to...
- A solution of Al_2(SO_4)_3 (d = 1.253 gm/mL) contain 22% salt by weight. The molarity and molality of the solution are
- A solution is obtained by mixing 300 g of 25% solution and 400 g of 40% solution by mass. Calculate the mass percentage of solute...
- Which of the following aqueous solutions produce the same osmotic pressure? (i) 0.1 M NaCl solution (ii) 0.1 M glucose solution...
- The mass of a non-volatile solute of molar mass 40 g mol^ -1 that should be dissolved in 114 g of octane to lower its vapour...
- 58.5 g of NaCl and 180 g of glucose were separately dissolved in 1000 mL of water. Identify the correct statement regarding the...
- Two solutions of HCl, A and B have concentrations of 0.5 N and 0.1 M respectively. The volume of solutions A and B required to...
- A solution at 20^ C is composed of 1.5 moles of benzene and 3.5 moles of toluene. If the vapour pressure of pure benzene and pure...
- The relative lowering of vapour pressure of an aqueous solution containing a non-volatile solute is 0.0125. The molality of the...
- How many grams of methyl alcohol should be added to 10 L tank of water to prevent its freezing at 268 K ?
- How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO_3 ? The concentrated acid is...
- The osmotic pressure of 12% solution of cane sugar at 17^ C is