Chemistry Fsc Part 1 Online Test With Answers

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Chemistry Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 The oxidation of O -atom in OF3 is. -2 +2 -1 +1
2 The oxidation number of C in C12H22O11 is Zero - 6 + 6 12
3 The molar boiling point constant is the ratio of the elevation of boiling point to . Molarity Molality Mole fraction of solvent Mole fraction of solute
4 Relative lowering of vapour pressure is equl to. Mole fraction of solute Mole fraction of solvent Molarity Molality
5 An aqueous solution of ethanol is water has vaporu pressure. Equal to the of water Equal to that of ethanol More than that of H2O Less than that of water
6 18 g glucose is dissolved in 90 g of water. The relative lowering of vapour pressure is equal to. 1/5 5.1 1/51 6
7 Melting of ice can be forwarded by the use of. LiCl BeCl2 NaCl Ag Cl
8 Upper consulate temperature for water phenol system is. 150 <sup>o</sup>C 65.9 <sup>o</sup>C 120 <sup>o</sup>C 130 <sup>o</sup>C
9 Catalyst used in preparation of NH3 from N2 and H2 is. Ni Fe Pt V2O5
10 Optimum pressure in Haber's process for synthesis of Ammonia is 100 -150 atm 200- 300 atm 350 - 450 atm 500 - 600 atm
11 _________ was derived by C.M Guldberg and P Waage in 1864 Law of conservation of Mass Law of mass action Law of conservation of energy Distribution law
12 The law of mass action was given by D.C. down and P wage Gay Lussic and C.M C.M Goldberg and P. Waage Hendeson and Le Chateller's
13 The optimum temperature for the synthesis of NH3 by Haber's process is. 200 <sup>o</sup>C 300 <sup>o</sup>C 400 <sup>o</sup>C 500 <sup>o</sup>C
14 The born Haber cycle is the best application of law. Boyle's Dalton's Hess's Graham's
15 The pressure of oxygen inside the bomb calorimeter is. 100 atm 50 atm 25 atm 20 atm
16 The change in heat energy of a chemical reaction at constant temperature and pressure is called. Enthalpy change Bond energy Heat of sublimation Internal energy change
17 The net heat change in a chemical reaction is same whether it is brought about in two or more different ways in one or several steps. It is known as Henry's law Hess's law Joule's principle Law of conservation of energy
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