AIPMT Mains Chemistry Solutions Class 12 Questions
7 questions
Vapour pressure of chloroform (CHCl₃) and dichloromethane (CH₂Cl₂) at 25°C are 200 mm Hg and 41.5 mm Hg respectively. Vapour pressure of the solution obtained by mixing 25.5 g of CHCl₃ and 40 g of CH₂Cl₂ at the same temperature will be: (Molecular mass of CHCl₃ = 119.5 u and molecular mass of CH₂Cl₂ = 85 u).
A 0.1 molal aqueous solution of a weak acid is 30% ionized. If Kf for water is 1.86°C/m, the freezing point of the solution will be
200 mL of an aqueous solution of a protein contains its 1.26 g. The Osmotic pressure of this solution at 300 K is found to be 2.57 × 10⁻³ bar. The molar mass of protein will be (R = 0.083 L bar mol⁻¹ K⁻¹)
Some statements about heavy water are given below a. Heavy water is used as a moderator in nuclear reactors b. Heavy water is more associated than ordinary water c. Heavy water is more effective solvent than ordinary water Which of the above statements are correct?
A 0.0020 m aqueous solution of an ionic compound Co(NH₃)₅(NO₂)Cl freezes a.00732°C. Number of moles of ions which 1 mol of ionic compound produces on being dissolved in water will be (Kf = -1.86°C/m)
The sequence of ionic mobility in aqueous solution is
Equimolar solutions of the following were prepared in water separately. Which one of the solutions will record the highest pH?