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MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - JEE MCQ


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7 Questions MCQ Test - MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2)

MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) for JEE 2024 is part of JEE preparation. The MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) questions and answers have been prepared according to the JEE exam syllabus.The MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) below.
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MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 1
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When two reactans A and B are mixed to give products C and D, the reaction quotient Q, at the initial stages of the reaction :                      [JEE 2000]

MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 2
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For the reversible reactions :

N2(g) + 3 H2(g) 2NH3(g) at 500°C. The value of Kp is 1.44 × 10-5, when partial pressure is measured in atmospheres. The corresponding value of Kc with concentration in mol L-1 is :   [JEE 2000]

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MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 3
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At constant temperature, the equilibrium constant (Kp) for the decomposition reaction. N2O4    2NO2 is expressed by Kp=  where P is pressure, x is extent of decomposition. Which of the following statement is true ?     [JEE 2001]

 

MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 4
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Consider the following equilibrium in a closed container : N2O4(g) 2NO2(g).        [JEE 2002]  

At a fixed temperature, the volume of the reaction container is halved. For this change, which of the following statements holds true regarding the equilibrium constant (KP) and degree of dissociation (α) :
Detailed Solution for MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 4
For the equilibria: N2O4(g) ⟺ 2NO2(g) KP = KC x (RT)^ΔnSince temperature is constant so Kc or KP will remain constant. Further since volume ishalved, the pressure will be doubled so α will decrease so as to maintain the constancy of KC or KP.
MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 5
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If Ag+ + NH3    [Ag(NH3)]+ ; K1=1.6 × 103  and

[Ag(NH3)+] + NH3[Ag(NH 3)+] ; K2=6.8 × 103

The formation constant of [Ag(NH3)2]+ is :                                   [JEE 2006]
Detailed Solution for MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 5
Actually the second reaction has errorIt should be [Ag(NH3)]^+ +NH3--》[Ag(NH3)2]^+ and its k is given as 6.8×10^3So on adding both the reactions you will get the reaction as Ag^+ + 2NH3 --》[Ag(NH3)2]^+So the required formation constant is K1*k2 =1.6×6.8*10^6=1.088×10^7
*Multiple options can be correct
MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 6
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The equilibrium

2CuI Cuº + CuII

in aqueous medium at 25ºC shifts towards the left in the presence of       [JEE 2011]
*Multiple options can be correct
MCQ (Previous Year Questions) - Chemical Equilibrium (Level 2) - Question 7
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The thermal dissociation equilibrium of CaCO3 (s) is studied under different conditions.

CaCO3 (s) CaO(s) + CO2(g)

For this equilibrium, the correct statement(s) is (are)           [JEE 2013]
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