Chemistry Fsc Part 1 Chapter 9 Online Test With Answers

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Chemistry Fsc Part 1 Chapter 9 Online Test

Sr. # Questions Answers Choice
1 Which one of the following salts do not hydrolyses CuSO4 Na2CO3 NaCl AlCl3
2 Which one of the following salts dissolved in water to form a solution with a pH lesser than 7 NaCl CuSO4 Na2CO3 NH4Cl
3 Which one of the following salts dissolved in water to form a solution with a pH greater than 7 NaCl CuSO4 Na2CO3 NH4Cl
4 Which one of the following salts dissolved in water to form a solution with a pH greater than 7 NaCl CuSO4 Na2CO3 NH4Cl
5 Salt of weak acid with strong base when dissolved in water gives. Acidic solution Basic solution Neutral solution None of above
6 When an ionic compound is dissolved in water, it dissociate into positive and negative ions, which are surrounded by H2O molecule, This process is known as. Hydrolysis Hydration Saturation solvolysis
7 When an ionic compound is dissolved in water, it dissociate into positive and negative ions, which are surrounded byH2O molecule, This process is known as. Hydrolysis Hydration Saturation solvolysis
8 Heat of solution of an ionic compound is equal to. Hydration energy Lattice energy Slum of both 'a' and 'b' Difference of both a and b
9 Colligative properties are used to determine the Freezing points Boiling point Atomic mass of an element Molar mass of solute
10 The vapour pressure of an aqueous solution of glucose is. Equal to vapour pressure of water Independent of temperature More than vapour pressure of pure water Less than vapour pressure of pure water
11 Molal boiling constant for water is 0.52 oC. If 6 g of urea is dissolved in 100 g of water, what will be its boiling point. 100.52 <sup>o</sup>C -100.52<sup>o</sup>C 100<sup>o</sup>C 99<sup>o</sup>C
12 Molal boiling point elevation depends upon Nature of solvent Natrue of solute Vapour pressure of solution None of these
13 The molal boiling point constant is the ratio of elevation of boiling point to Molarity Mole fraction of solvent Molality Mole fraction of solute
14 Solubility of which substance decreases by increasing temperature. NaNO3 KNO2 NaCl Ce2(SO4)3
15 Solubility of which substance decreases by incressing temperature. NaNO3 KNO2 NaCl Ce2(SO4)3
16 Solubility curve of CaCl26H2O shows Decrease in solubility with increase of temperature Increase in solubility with increase of temperature Discontinuous increase in solubility with temperature No effect of temperature on solubility
17 Water and Phenol are partially miscible to each other at room temperature when both liquids are mixed together which is upper layer. Water in Phenol Phenol and water Pure phenol Pure water
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