For the equilibrium,

2NOCl(g) 2NO(g) + Cl2(g)

the value of the equilibrium constant, Kc  is 3.75 × 10–6 at 1069 K. 

The value of Kp for the reaction at this temperature is-

1. 0.048

2. 0.67

3. 0.29

4. 0.033

Subtopic:  Kp, Kc & Factors Affecting them |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Hydrolysis of sucrose gives,

Sucrose + H2O  Glucose + Fructose

The equilibrium constant Kc for the reaction is 2 ×1013 at 300K. The value of G at 300K is-

1. – 5.64 ×10
4 J mol–1
2. – 7.64 ×104 J mol–1
3. – 6.64 ×104 J mol–1
4. – 8.64 ×104 J mol–1

Subtopic:  Kp, Kc & Factors Affecting them |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The ionization constant of the hypochlorous acid is 2.5 × 10–5. The concentration of hypochlorous acid 0.08 M. The percent dissociation of HOCl is-

1. 2.56 %
2. 1.21 %
3. 1. 76 %
4. 2.21 %

Subtopic:  Ionisation Constant of Acid, Base & Salt |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

The solubility of A2X3 in pure water, assuming that neither kind of ion reacts with water is-
(solubility product of A
2X3Ksp = 1.1 × 10–23)

1. 5.0 × 10
–5 mol/L.
2. 1.0 × 10
–5 mol/L
3. 1.0 × 10
–4 mol/L
4. 5.0 × 10
–4 mol/L.

Subtopic:  Common Ion Effect |
 75%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The pKb of dimethylamine and pka of acetic acid are 3.27 and 4.77 respectively at T (K).
The correct option for the pH of dimethylammonium acetate solution is:

1. 7.75 2. 6.25
3. 8.50 4. 5.50
Subtopic:  Salt Hydrolysis & Titration |
 62%
From NCERT
NEET - 2021
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The compound with the highest pH among the following is:

1. CH3COOK

2. Na2CO3

3. NH4Cl

4. NaNO3

Subtopic:  Salt Hydrolysis & Titration |
 57%
From NCERT
AIPMT - 2002
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

For the given reaction: H2NCOONH4 (s) \( \rightleftharpoons\) 2NH3 (g) + CO2 (g),
total pressure at equilibrium is found to be 18 atmospheres. The value of Kp for the above equilibrium will be 

1. 72 atm3

2. 144 atm3

3. 432 atm3

4. 864 atm3

Subtopic:  Introduction To Equilibrium |
 60%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

At 4oC , ionic product of water (K\(\omega\)) is 10-16 . At this temperature, a solution has pH = 7.5 . The nature of this solution at 4oC will be 

1. Acidic 

2. Alkaline 

3. Neutral

4. Cannot be predicted 

Subtopic:  pH calculation |
 66%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

The ionization constant of ammonia is 1.77 × 10–5. The pH of a 0.05M of ammonia solution is 11. The ionization constant of the conjugate acid of ammonia is:

1. 2.
44 × 10–9

2. 6.14 × 10–12

3. 1.24 × 10–14

4. 5.64 × 10–10
Subtopic:  Ionisation Constant of Acid, Base & Salt |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh