JEE Questions for Chemistry Equilibrium Quiz 13 - MCQExams.com


Chemistry-Equilibrium-4055.png

  • Chemistry-Equilibrium-4056.png
  • 2)
    Chemistry-Equilibrium-4057.png

  • Chemistry-Equilibrium-4058.png

  • Chemistry-Equilibrium-4059.png

Chemistry-Equilibrium-4060.png
  • 416
  • 2)
    Chemistry-Equilibrium-4061.png

  • Chemistry-Equilibrium-4062.png

  • Chemistry-Equilibrium-4063.png
PH of 0.1 M solution of weak acid is 3. The value of ionisation constant Ka of acid is

  • Chemistry-Equilibrium-4065.png
  • 2)
    Chemistry-Equilibrium-4066.png

  • Chemistry-Equilibrium-4067.png

  • Chemistry-Equilibrium-4068.png

Chemistry-Equilibrium-4070.png
  • (i) only
  • (ii) only
  • (i) and (ii)
  • (iii) only

Chemistry-Equilibrium-4072.png
  • whether Kp is greater than less than or equal to Kc depends upon the total gas pressure
  • Kp = Kc
  • Kp < Kc
  • Kp > Kc
A solution of an acid has PH = 4.70 .find out the concentration of OH- pKw = 14.
  • 5 × 10-10 M
  • 4 × 10-10 M
  • 2 × 10-5 M
  • 9 × 10-4 M
Which of the following molecule act as a lewis acid ?
  • (CH3)2O
  • (CH3)3P
  • (CH3)3N
  • (CH3)3B
In which case KP is less than KC (?)

  • Chemistry-Equilibrium-4075.png
  • 2)
    Chemistry-Equilibrium-4076.png

  • Chemistry-Equilibrium-4077.png
  • all of these

Chemistry-Equilibrium-4079.png
  • K1 – K2
  • K2 – K1
  • K2/ K1
  • K1 / K2

Chemistry-Equilibrium-4080.png
  • conc.+10
  • conc.+1
  • conc.-1
  • It is dimensionless

Chemistry-Equilibrium-4082.png

  • Chemistry-Equilibrium-4083.png
  • 2)
    Chemistry-Equilibrium-4084.png

  • Chemistry-Equilibrium-4085.png

  • Chemistry-Equilibrium-4086.png
The solubility product of a salt having general formula MX2 in water is 4 × 10-12. The concentration of M2+ ions in an aqueous solution of the salt is:

  • Chemistry-Equilibrium-4088.png
  • 2)
    Chemistry-Equilibrium-4089.png

  • Chemistry-Equilibrium-4090.png

  • Chemistry-Equilibrium-4091.png
PH of 0.005 M calcium acetate (PKa of CH3COOH = 4.is
  • 7.04
  • 9.37
  • 9.26
  • 8.37
One of the following equilibrium is not affected by change in volume of the flask.

  • Chemistry-Equilibrium-4094.png
  • 2)
    Chemistry-Equilibrium-4095.png

  • Chemistry-Equilibrium-4096.png

  • Chemistry-Equilibrium-4097.png
A certain buffer solution contains equal concentration of X– and HX.Ka for HX is 10–8 .The PH of buffer is
  • 3
  • 8
  • 11
  • 14

Chemistry-Equilibrium-4100.png

  • Chemistry-Equilibrium-4101.png
  • 2)
    Chemistry-Equilibrium-4102.png

  • Chemistry-Equilibrium-4103.png

  • Chemistry-Equilibrium-4104.png
In which of the following reaction NH3 acts as acid ?

  • Chemistry-Equilibrium-4106.png
  • 2)
    Chemistry-Equilibrium-4107.png

  • Chemistry-Equilibrium-4108.png

  • Chemistry-Equilibrium-4109.png

Chemistry-Equilibrium-4110.png

  • Chemistry-Equilibrium-4111.png
  • 2)
    Chemistry-Equilibrium-4112.png

  • Chemistry-Equilibrium-4113.png

  • Chemistry-Equilibrium-4114.png
The solubility of product barium sulphate is 1.5 × 10-9 at 18o C.Its solubility in water at 18o C is
  • 1.5 × 10-9 mol L-1
  • 1.5 × 10-5 mol L-1
  • 3.9 × 10-9 mol L-1
  • 3.9 × 10-5 mol L-1
What is the value of PH of 0.01 M glycine solution ? For glycine Ka1 = 4.5 × 10-3 and Ka2 = 1.7 × 10-10 at 298k.
  • 3.0
  • 10.0
  • 6.1
  • 7.06
The dissociation consant of a substituted benzoic acid at 25oC is 10 × 10-4 .The PH of 0.01 M solution of its sodium salt is
  • 0
  • 1
  • 7
  • 8

Chemistry-Equilibrium-4126.png

  • Chemistry-Equilibrium-4127.png
  • 2)
    Chemistry-Equilibrium-4128.png

  • Chemistry-Equilibrium-4129.png

  • Chemistry-Equilibrium-4130.png
Number of H+ ions present in 500 ml of lemon juice of PH = 3 is

  • Chemistry-Equilibrium-4132.png
  • 2)
    Chemistry-Equilibrium-4133.png

  • Chemistry-Equilibrium-4134.png

  • Chemistry-Equilibrium-4135.png

Chemistry-Equilibrium-4137.png

  • Chemistry-Equilibrium-4138.png
  • 2)
    Chemistry-Equilibrium-4139.png

  • Chemistry-Equilibrium-4140.png

  • Chemistry-Equilibrium-4141.png
At 25oC temp. the value of pkb for NH3 in aqueous solution is 4.7. what is the value of PH of 0.1 M aqueous solution of NH4Cl with 0.1 M NH3 (?)
  • 8.3
  • 9
  • 9.5
  • 10
The aqueous solution of HCOO Na, C6H5NH3 Cl, and KCN are respectively
  • Acidic, acidic, basic
  • Acidic, basic, neutral
  • Basic, acidic, basic
  • Basic, neutral, basic
KSP of AgIO3 is 1 × 10-8 at a given temperature what is the mass of AgIO3 in 100 ml of its saturated solution ?

  • Chemistry-Equilibrium-4144.png
  • 2)
    Chemistry-Equilibrium-4145.png

  • Chemistry-Equilibrium-4146.png

  • Chemistry-Equilibrium-4147.png
PH of a solution containing 50 mg of sodium hydroxide in 10 dm3 of the solution is
  • 9
  • 3.9031
  • 10.0969
  • 10
Equal volumes of three basic solutions of 11,12 and 13 are mixed in a vessel. what will be the H+ ion concentration in the mixture ?

  • Chemistry-Equilibrium-4150.png
  • 2)
    Chemistry-Equilibrium-4151.png

  • Chemistry-Equilibrium-4152.png

  • Chemistry-Equilibrium-4153.png

Chemistry-Equilibrium-4155.png
  • A-r, B-q, C-s, D-p
  • A-q, B-p, C-s, D-r
  • A-q, B-p, C-r, D-s
  • A-r, B-q, C-s, D-p
Statement :1 PH of 10-8 HCl solution is not equal to 8
Statement :2 HCI does not dissociate properly in very dilute solution.
  • Statement -1 is true. Statement -2 is true. Statement-2 is a correct explanation for statement-1
  • Statement- 1 is true. Statement-2 is true. Statement-2 is not a correct explanation of statement-1
  • Statement-1 is true. Statement-2 is false.
  • Statement-1 is false. Statement-2 is true.

Chemistry-Equilibrium-4157.png
  • BaSO4
  • CaSO4
  • Ag2SO4
  • all of these
The solubility of A2B3 is x mol L-1. It solubility product is
  • 6x5
  • 64x5
  • 36x5
  • 108x5
How much volume of 0.1 M CH3COOH should be added to 50ml of 0.2 M CH3 COONa . If we want to prepare a buffer Solution of PH 4.91. given pKa for acetic acid is 4.76
  • 80.92 ml
  • 100 ml
  • 70.92 ml
  • 60.92 ml
The ionization constants of HF is 6.8 × 10-4 . Calculate ionization constant of corresponding conjugate base.

  • Chemistry-Equilibrium-4161.png
  • 2)
    Chemistry-Equilibrium-4162.png

  • Chemistry-Equilibrium-4163.png

  • Chemistry-Equilibrium-4164.png
What is PH of our blood ? why does it remains constant inspite the variety of the foods and spices we eat ?
  • of blood is 5.4. It remains constant because.it is acidic
  • of blood is 7.4. It remains constant because.it is buffer
  • of blood is 10.8.It remains constant because.it is basic
  • of blood is 7.0. It remains constant because it is neutial

Chemistry-Equilibrium-4166.png

  • Chemistry-Equilibrium-4167.png
  • 2)
    Chemistry-Equilibrium-4168.png

  • Chemistry-Equilibrium-4169.png

  • Chemistry-Equilibrium-4170.png

Chemistry-Equilibrium-4172.png

  • Chemistry-Equilibrium-4173.png
  • 2)
    Chemistry-Equilibrium-4174.png

  • Chemistry-Equilibrium-4175.png

  • Chemistry-Equilibrium-4176.png

Chemistry-Equilibrium-4178.png

  • Chemistry-Equilibrium-4179.png
  • 2)
    Chemistry-Equilibrium-4180.png

  • Chemistry-Equilibrium-4181.png

  • Chemistry-Equilibrium-4182.png
How much sodium acetate should be added to 0.1 M solution of CH3 COOH to give a solution of PH 5.5 (pKa of CH3 COOH = 4.5 )
  • 0.1 M
  • 1.0 M
  • 0.2 M
  • 10.0 M

Chemistry-Equilibrium-4185.png

  • Chemistry-Equilibrium-4186.png
  • 2)
    Chemistry-Equilibrium-4187.png

  • Chemistry-Equilibrium-4188.png

  • Chemistry-Equilibrium-4189.png
Two moles of PCls are heated in a closed vessel of 2L capacity. At equilibrium, 40 % of PCl5 is dissociated in to PCl3 & Cl2 . The value of equilibrium constant is,
  • 0.266
  • 0.53
  • 2.66
  • 5.3

Chemistry-Equilibrium-4192.png

  • Chemistry-Equilibrium-4193.png
  • 2)
    Chemistry-Equilibrium-4194.png

  • Chemistry-Equilibrium-4195.png

  • Chemistry-Equilibrium-4196.png
A + B ⇌ C + D if finally the concentration of A and B are both equal but at equilibrium concentration of ∆ will be twice of that of A. Then what will be equilibrium constant of the reaction.
  • 4/9
  • 9/4
  • 1/9
  • 4

Chemistry-Equilibrium-4199.png
  • 4.33
  • 5.33
  • 6.33
  • 7.33
Two moles of NH3 ,when put in to a previously evacuated vessel(1 Litre), partially dissociate in to N2 and H2 , If at equilibrium one mole of NH3 is present, the equilibrium constant is,

  • Chemistry-Equilibrium-4201.png
  • 2)
    Chemistry-Equilibrium-4202.png

  • Chemistry-Equilibrium-4203.png

  • Chemistry-Equilibrium-4204.png

Chemistry-Equilibrium-4206.png

  • Chemistry-Equilibrium-4207.png
  • 2)
    Chemistry-Equilibrium-4208.png

  • Chemistry-Equilibrium-4209.png

  • Chemistry-Equilibrium-4210.png

Chemistry-Equilibrium-4212.png

  • Chemistry-Equilibrium-4213.png
  • 2)
    Chemistry-Equilibrium-4214.png

  • Chemistry-Equilibrium-4215.png

  • Chemistry-Equilibrium-4216.png

Chemistry-Equilibrium-4218.png
  • mole2 Litre–2
  • Litre mole–1
  • mole Litre–1
  • Litre2 mole–2

Chemistry-Equilibrium-4219.png
  • 1
  • RT

  • Chemistry-Equilibrium-4220.png
  • (RT)1/2
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Chemistry Quiz Questions and Answers