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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Among the following the correct order of acidity is

1. HClO < HClO2< HClO3< HClO4
2. HClO2< HClO < HClO3< HClO4
3. HClO4< HClO2< HClO < HClO3
4. HClO3< HClO4< HClO2< HClO

Subtopic:  Acids & Bases - Definitions & Classification |
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At room temperature, MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 x 10-13 . The true statement regarding MY and NY3 is:

1. The molar solubility of MY in water is less than that of NY3.

2. The salts MY and NY3 are more soluble in 0.5 M KY than in pure water

3. The addition of the salt of KY to a solution of MY and NY3 will have no effect on their solubilities

4. The molar solubilities of MY and NY3 in water are identical.

Subtopic:  Solubility Product |
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When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, then the pH of the resulting solution will be:
1. 12.65
2. 2.0
3. 7.0
4. 1.04

Subtopic:  pH calculation |
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An acidic buffer cannot be formed by which of the following combinations?
1. HClO4 and NaClO4
2. CH3COOH and CH3COONa
3. H2CO3 and Na2CO3
4. H3PO4 and Na3PO4

Subtopic:  Buffer |
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If the equilibrium constant for N2(g)+O2(g)  2NO(g) is K, the equilibrium constant for 
12N2(g)+12O2(g)  NO(g)will be?

1. K12

2. 12K

3. K

4. K2

Subtopic:  Kp, Kc & Factors Affecting them |
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Aqueous solution of which of the following compounds is the best conductor of electric current?
1. Acetic acid, C2H4O2
2. Hydrochloric acid, HCl
3. Ammonia, NH3
4. Fructose, C6H12O6

Subtopic:  Ionisation Constant of Acid, Base & Salt |
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The value of the equilibrium constant for a particular reaction is 1.6 x 1012. When the system is in equilibrium, it will include:
1. All reactants
2. Mostly reactants
3. Mostly products
4. Similar amounts of reactants and products

Subtopic:  Kp, Kc & Factors Affecting them |
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