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 |
 83%
NEET - 2016
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Hints

MY and NY3 , two nearly insoluble salts, have the same Ksp values of 6.2 x 10-13 at room

temperature. Which statement would be true in regard to MY and NY3?

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 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 |
 57%
From NCERT
NEET - 2016
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The Ksp of Ag2CrO4, AgCl, AgBr and Agl are, respectively, 1.1x10-12, 1.8x10-10, 5.0x10-13, and 8.3x10-17. The salt precipitates that last if the AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr, Nal and Na2CrOis -

1. Agl 2. AgCl
3. AgBr 4. Ag2CrO4
Subtopic:  Solubility Product |
From NCERT
NEET - 2015
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Which of the following statements is correct for a reversible process in a state of

equilibrium?

1. ΔG = -2.30 RT logK

2. ΔG = 2.30 RT log K

3. ΔG° = -2.30 RT logK

4. ΔG° = 2.30 RT logK

Subtopic:  Kp, Kc & Factors Affecting them |
 78%
From NCERT
NEET - 2015
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The pH of the resulting solution when equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed is:

1. 12.65

2. 2.04

3. 7.01

4. 1.35

Subtopic:  pH calculation |
 64%
From NCERT
NEET - 2015
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Among the following pairs of solution the one which is not an acidic buffer is 

1. HClO4 and NaClO4

2. CH3COOH and CH3COONa

3. H2CO3 and Na2CO3

4. H3PO4 and Na3PO4

Subtopic:  Buffer |
 62%
From NCERT
NEET - 2015
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For the reversible reaction, N2(g) + 3H2(g) — 2NH3(g) + Heat the equilibrium shifts in

forward direction

1. By increasing the concentration of NH3(g)

2. By decreasing the pressure

3. By decreasing the concentrations of N2(g) and H2(g)

4. By increasing pressure and decreasing temperature

Subtopic:  Le Chatelier's principle |
 80%
From NCERT
NEET - 2014
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For a given exothermic reaction, Kp and K'p are the equilibrium constants at temperatures

T1 and T2 respectively. Assuming that heat of reaction is constant in a temperature range

between T1 and T2, it is readily observed that

1. Kp>K'p                       

2. Kp<K'p

3. Kp = K'p                     

4. Kp = 1/K'p

Subtopic:  Kp, Kc & Factors Affecting them |
NEET - 2014
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Buffer solutions have constant acidity and alkalinity because
1. these give unionised acid or base or base on reaction with added acid or alkali
2. acids and alkalies in these solutions are shielded from attack by other ions
3. they have large excess of H+ or OH- ions
4. they have fixed value of pH

 

Subtopic:  Buffer |
 56%
From NCERT
NEET - 2012
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The molecule that is least likely to behave as Lewis base is: 

1. NH3

2. BF3

3. OH-

4. H2O

Subtopic:  Ionisation Constant of Acid, Base & Salt | Acids & Bases - Definitions & Classification |
 79%
From NCERT
NEET - 2011
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