Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :
A)  60 mL M10HCI  + 40 mL M10NaOH
B)   55 mL M10HCI  + 45 mL M10NaOH
C)  75 mL M5HCI  + 25 mL M5NaOH
D)  100 mL M10HCI  + 100 mL M10NaOH
pH of which one of them will be equal to 1?
1. B
2. A
3. D
4. C

Subtopic:  pH calculation |
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The solubility of BaSO4 in water is 2.42 × 10-3 g/ litre at 298 K. The value of the solubility product will be:

(Molar mass of BaSO4 = 233 gmol–1)

1.  1.08 × 10-10 mol2 L-2
2.  1.08 × 10-12 mol2 L-2
3.  1.08 × 10-14 mol2 L-2
4.  1.08 × 10-8 mol2 L-2

Subtopic:  Solubility Product |
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Which of the following conditions will favour maximum formation of the product in the reaction, 
 A2 (g)  + B2 (g)   X2 (g) rH = -X k J  ?

1. Low temperature and high pressure
2. Low temperature and low pressure
3. High temperature and high pressure
4. High temperature and low pressure

Subtopic:  Le Chatelier's principle |
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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 the pressure of CO2 attains its maximum value, when the pressure of C02 attains its maximum value, will be

(Given that: SrCO3(s)  SrO(s) + CO2(g), (Kp =1.6 atm))

(1) 5 L

(2) 10 L

(3) 4L

(4) 2L

Subtopic:  Kp, Kc & Factors Affecting them |
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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

1. 2.42 x 10-8

2. 2.66 x 10-12

3. 4.5 x 10-11

4. 5.3 x 10-12

Subtopic:  Solubility Product |
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Given are three reactions and their equilibrium constants : 
N2+3H2  2NH3      K1N2+O2  2NO         K2H2+12O2  H2O      K3

The equilibrium constant (K) of the following reaction will be : 
2NH3+52O2 K 2NO+3H2O
1. K2K33/K1
2. K2K3/K1
3. K23K3/K1
4. K1K33/K2

Subtopic:  Kp, Kc & Factors Affecting them |
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The concentration of Ag+ ions in a saturated solution of Ag2C2Ois 2.2× 10-4mol L-1 . The solubility product of Ag2C2O4 is
1. 2.66×10-12
2. 4.5×10-11
3.5.3×10-12
4. 2.42×10-8

Subtopic:  Solubility Product |
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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, will be: 

Given that : SrCO3(s)  SrO(s) + CO2(g) , kp = 1.6 atm 
1. 10 litre
2. 2 litre
3. 4 litre
4. 5 litre

Subtopic:  Kp, Kc & Factors Affecting them |
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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

(1) 0.0060 %                 

(2) 0.013 %

(3) 0.77 %                     

(4) 1.6%

Subtopic:  Kp, Kc & Factors Affecting them |
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The solubility of AgCl (s) with solubility product 1.6 x 10-10 in 0.1 M NaCl solution would be

(1) 1.26 x 10-5 M               

(2) 1.6 x 10-9 M

(3) 1.6 x 10-11 M               

(4) zero

Subtopic:  Solubility Product |
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