FSC Part 1 Chemistry Chapter 8 Chemical Equilibrium Online Test | ilmkidunya

Chemistry Fsc Part 1 Chapter 8 Online Test

Sr. #	Questions	Answers Choice
1	The sum of pH and pOH is	0 7 14 10
2	When concentration of one product is removed at equilibrium stage, in which direction it moves to reestablish equilibrium.	Forward Reverse Neither forward nor reverse Equally move in both direction
3	When solid KI dissolved in water, its heat of solution is positive. What would happen to dissolution when temperature is increased.	Increases Decreases Remain same Firs increases than decreases
4	For the equilibrium system N2 + O2 + Heat = 2NO the equilibrium constant deceases by	Decreasing the temperature Adding a catalyst Adding N2 Adding NO
5	the substance which increase the rate of reaction but remains unchanged at the end of the reaction is called.	Indicator Promoter Catalyst Activated complex
6	Almost forward reaction is complete when value of Kc is	very high Very small Neither large nor very small No correlation
7	The unit of Kc for the reaction N2 +O2 = 2NO will be	mol dm-3 mol-1 dm+3 mol-2 dm+6 No units
8	A chemical reaction A ---------- B is said to be in equilibrium when	Complete conversion of A to B has taken place Conversion of A to B is 50% complete Rate of transformation of A to B is equal to B to A 50% Reactant have been changed to B
9	The pH of 10-3 mole dm-3 of an aqueous solution of H2SO4 is.	3.0 2.7 2.0 1.5
10	Catalyst used in preparation of NH3 from N2 and H2 is.	Ni Fe Pt V2O5
11	Optimum pressure in Haber's process for synthesis of Ammonia is	100 -150 atm 200- 300 atm 350 - 450 atm 500 - 600 atm
12	_________ 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
13	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
14	The pK_avalue of CH₃COOH is 4.74 when we mix CH₃COOH and CH₃COONa in the ratio of 10:1, tehn the pH of the buffer is	4.74 5.74 3.74 7.00
15	The number of moles of acid or base required by one dm³of buffer to alter its pH by one unit is called	Buffer efficiency Buffer capacity Buffer action None
16	A buffer solution can be prepared by mixing	Weak acid and its salt with weak base Weak base and its salt with strong acid Strong acid and its salts with weak base Strong base and its salt with weak acid
17	The value of pH and P^oHof pure water at 25° C is	14 7 1 x 10<sup>-14</sup> 1 x 10<sup>14</sup>

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