The equilibrium constant Kp for the following reaction is:

MgCO3(s)MgO(s)+CO2(g)

1. Kp PCO2

2. Kp=PCO2×PCO2×PMgOPMgCO3

3. Kp=PCO2+PMgOPMgCO3

4. Kp=PMgCO3PCO2×PMgO

Subtopic:  Kp, Kc & Factors Affecting them |
 88%
From NCERT
AIPMT - 2000
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The correct relation between dissociation constants of a di-basic acid is:

1. Ka1=Ka2

2. Ka1>Ka2

3. Ka1<Ka2

4. Ka1=1Ka2

Subtopic:  Kp, Kc & Factors Affecting them |
 68%
From NCERT
AIPMT - 2000
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For any reversible reaction, if we increase the concentration of the reactants, the effect on equilibrium constant will:
1. Depend on the amount of concentration
2. Remain unchanged
3. Decrease
4. Increase

Subtopic:  Kp, Kc & Factors Affecting them |
 80%
From NCERT
AIPMT - 2000
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Equilibrium constants K1 and K2 for the following equilibria

NO(g)+12O2K1NO2( g) and 2NO2( g)K22NO(g)+O2( g)

are related as:

1. K2=1 K1

2. K2=K12

3. K2=1 K12

4. K2=K12

Subtopic:  Introduction To Equilibrium |
 87%
From NCERT
AIPMT - 2005
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Conjugate acid of NH2 is:

1. NH4OH

2. NH4+

3. \(NH_{2}^{-}\)

4. NH3

Subtopic:  Acids & Bases - Definitions & Classification |
 88%
From NCERT
AIPMT - 2000
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Incorrect statement about pH and H+ is: 
 

1. pH of neutral water is not zero.
2. Adding 1M solution of CH3COOH and 1M solution of NaOH, the pH will be 7.
3. H+ of dilute and hot H2SO4 is more than concentrate and cold H2SO4
4. Mixing solution of CH3COOH and HCl, pH will be less than 7

Subtopic:  pH calculation |
 73%
From NCERT
AIPMT - 2000
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At 25 ºC, the dissociation constant of a base, BOH, is 1.0 × 10–12. The concentration of hydroxyl ions in 0.01M aqueous solution of the base would be:

1. 1.0 × 10–6 mole L–1 2. 1.0 × 10–7 mole L–1
3. 2.0 × 10–6 mole L–1 4. 1.0 × 10–5 mole L–1
Subtopic:  Ionisation Constant of Acid, Base & Salt |
 73%
From NCERT
AIPMT - 2005
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If A + B  C + D Constant = K1
E + F  G + H Constant = K2

then C + D + E + F ⇒ product. The constant of reaction will be:

1.  K1K2

2.  K2K1

3. K1K2

4. None of these 

Subtopic:  Kp, Kc & Factors Affecting them |
 76%
From NCERT
AIPMT - 1998
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The fertilizer which makes the soil acidic is:

1. (NH4)2SO4

2.  Super phosphate of lime .

3. CH3COONa

4. Ca(NO3)2

Subtopic:  Salt Hydrolysis & Titration |
 73%
From NCERT
AIPMT - 1998
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Among the following examples, the species that behave(s) as a Lewis acid is/are: 
BF3,SnCl2,SnCl4 
1. Stannous chloride, stannic chloride
2. BF3stannous chloride
3. Only BF3
4. BF3, stannous chloride , stannic chloride

Subtopic:  Acids & Bases - Definitions & Classification |
From NCERT
AIPMT - 1999
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