11th Class FSc Part 1 Chemistry Chapter Wise Online MCQ Test With Answer PDF

Chemistry Fsc Part 1 Online Test

Sr. #	Questions	Answers Choice
1	Le-Chatelier Braun principle is sometimes known as	Law of mass action Law of mobile equilibrium Law of active mass All of these above
2	The relationship between K_pand K_cis given by
3	If the volumes of reactants and products are same in a gaseous phase reaction, then the equilibrium state is not affected by	Change of temperature Change of pressure Change of concentration Catalyst
4	The unit of equilibrium constant K_cfor the reaction	dm<sup>+6</sup>mole<sup>-2</sup> mole<sup>2</sup>dm<sup>-6</sup> Mole dm<sup>-3</sup> Having no units
5	At equilibrium stage of chemical reaction	The concentration of reaction is equal to concentration of products The rate constant of forward reaction is equal to rate constant of backward reaction The rate of forward reaction is equal rate of backward reaction The energy of activation of forward step is equal to energy of activation of backward step
6	An excess of aqueous silver nitrate is added to aqueous barium chloride and precipitate is removed by filtration. What are the main ions in the filtrate
7	The solubility product of AgCI is 2.0 x 10^-10mol²dm^-6The maximum concentration of Ag⁺ions in the solution is	2.0 x 10<sup>-10</sup>mol dm<sup>-3</sup> 1.41 x 10<sup>-5</sup>mol dm<sup>-3</sup> 1.0 x 10<sup>-10</sup>mol dm<sup>-3</sup> 4.0 x 10<sup>-20</sup>mol dm<sup>-3</sup>
8	The pH of 10^-3mol dm^-3of an aqueous solution of H₂SO₄is	3.0 2.7 2.0 1.5
9	Which statement about the following equilibrium is correct	The value of K<sub>p</sub>falls with a rise in temperature The value of K<sub>p</sub>falls with increasing pressure Adding V<sub>2</sub>O<sub>5</sub>catalyst increase the equilibrium yield of sulphur trioxide The value of K<sub>p</sub>is equal to K<sub>c</sub>
10	For which system does the equilibrium constant K_chas units of (concentration)^-1
11	Whenever a reaction is endothermic, then it means that	Heat is transferred from surrounding to the system Heat is transferred system to the surrounding Heat content of the product is greater than that of reactants Heat content of the reactants is greater than the products
12	One of the following statements about Born-Haber cycle is correct. Which is that statement	Born-Haber cycle is different from Hess's law The energy change in a cyclic process is not zero The lattice energy of the crystalline substances can be calculated easily Heat of formation of the product and the lattice energy of the substance can be calculated simultaneously
13	The net change in a chemical reaction is same whether it takes place directly or indirectly is	Henry's law Charles's Hess's lass Graham's law
14	The S.I. units for the molar heat capacity are	Joule Cm<sup>-3</sup>degree<sup>-1</sup> Joule deg<sup>-1</sup>atm<sup>-1</sup> Joule deg<sup>-1</sup>mol<sup>-1</sup> Joule deg<sup>-1</sup>kg<sup>-1</sup>
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16	At constant volume of a system remains constant and the heat is absorbed by the system, them amount of heat absorbed is called	Enthaply change of the system Internal energy change of the system Total enthalphy of the system Total internal energy of the system
17	What happens to the enthalpy change when the coeffficients of a chemical equation are douubled	It doubles It becomes half It does not change It cannot be predicted

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