Q#2 Multiple Choice 1. Hydrogen (H) makes hydrogen bond with 3 adjacent elements which are b. Carbon, Oxygen, Hydrogen a

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Q 2 Multiple Choice 1 Hydrogen H Makes Hydrogen Bond With 3 Adjacent Elements Which Are B Carbon Oxygen Hydrogen A 1 (59.11 KiB) Viewed 68 times

Q#2 Multiple Choice 1. Hydrogen (H) makes hydrogen bond with 3 adjacent elements which are b. Carbon, Oxygen, Hydrogen a. Nitrogen, Oxygen, Florine c. Sodium, Chlorine, Helium d. Aluminum, Phosphorus, Sulfur 2. Bimolecular reaction involves how many reactants? (1 Marks) a. One b. Two c. Three d. Four 3. Which of the following is not a Colligative property a. Vapor pressure lowering b. Elevation of boiling point c. Depression in Freezing point d. Surface Tension A solution is made by dissolving 25 g of NaCl in 0.3 Kg of water. What is the mass percentage of solute in this solution. (4 Marks) a. 0.77% b. 7.7% c. 77% d. none of these 5. A 0.25 L of benzene solution contains 5.0 g of toluene (C-Hs). Calculate the molarity of the solution. (4 Marks) a. 3.9 M b. 0.39 M c. 39 M d. none of these 6. Calculate the vapor pressure of a solution at 20°C formed by dissolving 30 moles of glucose (C6H12O6) in 70 moles of water (Vapor Pressure of pure water at 20°C is 17.5 tom) (4 Marks) a. 12.25 torr b. 10 torr c. 15.5 torr d. none of these (1 Marks) (1 Marks)