The pH of a solution obtained by mixing 100ml of 0.2 M CH3COOH with 100ml of 0.2 M NaOH would be (given pKa for CH3COOH = 4.74)

(a) 4.74

(b) 8.87

(c) 9.10

(d) 8.57

Concept Questions :-

pH
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For N2 + 3H2 $⇌$2NH3, one mole of N2 and three moles of H2 are at pressure of 4 atm. Equilibrium pressure is found to be 3 atm. Hence, Kp is

1.    1/(0.5)x(0.15)3               2. 1/(0.5)x(1.5)3

3. 3x3/(0.5)x(1.5)3                 4. none of the above

Concept Questions :-

KP/KC - Factors
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If carbon dioxide is 2% dissociated at equilibrium 2CO2 (g)$⇌$2CO(g) + O2(g). The mole fraction of CO2 at equuilibrium is

(1) 1.01/0.98            (2) 0.98/1.01

(3) 0.01/0.98            (4) 0.098/1.01

Concept Questions :-

KP/KC - Factors
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Calculate the molar solublity of Fe(OH)2 at a pH of 8

[Ksp of Fe(OH)2 = 1.6 X 10-14]

1. 0.06

2. 0.016

3. 0.01

4. 0.16

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Among the following, the strongest Lewis acid is

1. BBr3

2. BCl3

3. BF3

4. all are same

Concept Questions :-

Acids & Bases - Definitions & Classification

Difficulty Level:

When a solution of acetic acid was titrated with NaOH, the pH of the solution when half of the acid, neutralised was 4.2. Dissociation constant of the acid is

(1) 6.31 X 10-5

(2) 3.2 X 10-5

(3) 8.7 X 10-8

(4) 6.42 X 10-4

Concept Questions :-

pH
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A 20 litre container at 400 K contains CO2(g) at pressure 0.4 atm and an excess of SrO (neglect the volume of solid SrO). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when pressure of CO2 attains its maximum value, when pressure of C02 attains its maximum value, will be (Given that:

SrCO3(s) $⇌$ SrO(s) + CO2(g),
(Kp =1.6 atm)

(a) 5 L

(b) 10 L

(c) 4L

(d) 2L

Concept Questions :-

KP/KC - Factors
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The equilibrium constant of the following are

The equilibrium constant (K) of the reaction

will be

(a) ${\mathrm{K}}_{1}{\mathrm{K}}_{3}^{3}}{{\mathrm{K}}_{2}}$

(b) ${\mathrm{K}}_{2}{\mathrm{K}}_{3}^{3}}{{\mathrm{K}}_{1}}$

(c) ${\mathrm{K}}_{2}{\mathrm{K}}_{3}^{}}{{\mathrm{K}}_{1}}$

(d) ${\mathrm{K}}_{2}^{3}{\mathrm{K}}_{3}^{}}{{\mathrm{K}}_{1}}$

Concept Questions :-

KP/KC - Factors
High Yielding Test Series + Question Bank - NEET 2020

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Concentration of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2 x 10-4 mol-1 solubility product of Ag2C2O4 is

(a) 2.42 x 10-8

(b) 2.66 x 10-12

(c) 4.5 x 10-11

(d) 5.3 x 10-12

Concept Questions :-

Solubility Product
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The percentage of pyridine (C5H5N) that forms pyridinium ion (C5H5N+H) in a 0.10 M aqueous pyridine solution (Kb for C5H5N = 1.7 x 10-9) is

(a) 0.0060 %                 (b) 0.013 %

(c) 0.77 %                     (d) 1.6%