At 80°C the vapour pressure of pure liquid ‘A’ is 520 mm Hg and that of pure liquid ‘B’ is 1000 mm Hg. If a mixture of solution of 'A’ and ‘B’ boils at 80°C and 1 atm pressure, the amount of ‘A’ in the mixture is (1 atm = 760 mm Hg)
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Solution A contains 7g/L of MgCl2 and solution B contains 7g/L of NaCl. At room temperature, the osmotic pressure of: |
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Which of the following liquid pairs shows a positive deviation from Raoult's law? |
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Density of a 2.05 M solution of acetic acid in water is 1.20 g/mL. The molarity of the solution is |
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The vapour pressure of two liquids P and Q are 80 and 60 torr respectively. The total vapour pressure of solution obtained by mixing 3 mol of P and 2 mol of Q would be |
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Acidified KMnO4 oxidizes oxalic acid to CO2. What is the volume (in litres) of 10–4m KMnO4 required to completely oxidize 0.5 litres of 10–2 M oxalic acid in acid medium |
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A binary liquid solution is prepared by mixing n–heptane and ethanol. Which one of the following statements is correct regarding the behavior of the solution? |
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Volume of water needed to mix with 10 mL N HCl to get 0.1 N HCl is |
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A 5.2 molal aqueous solution of methyl alcohol, CH3OH is supplied. What is the mole fraction of methyl alcohol in the solution? |
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A solution containing 10 g per dm3 of urea (molecular mass = 60) is isotonic with a 5% solution of a non–volatile solute. The molecular mass of this non–volatile solute is |
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The vapour pressure of pure water at 20°C is 17.5 mm Hg. If 18 g of glucose (C6H12O6) is added to 178.2 g of water at 20°C,the vapour pressure of resulting solution will be |
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