The equilibrium constant Br2 2Br at 500 K and 700 K are 10-10 and 10-5 respectively. The reaction is:

(a) endothermic                                  (b) exothermic

(c) fast                                               (d) slow

 

1. a,b

2.c,b

3.a,d

4 c,d

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

Solubility of a gas in liquid increases on:

1. Addition of a catalyst

2. Increasing the pressure

3. Decreasing the pressure

4. Increasing the temperature

Subtopic:  Le Chatelier's principle |
 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

A solution is called saturated if:

1. ionic concentration product < solubility product

2. ionic concentration product > solubility product

3. ionic concentration product  solubility product

4. none of the above

Subtopic:  Introduction To Equilibrium |
 59%
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 concentration of [H+] and concentration of [OH-] of a 0.1M aqueous solution of 2% ionised weak monobasic acid is                                                                    

[ionic product of water = 1x 10-14]

1. 0.02x10-3 M and 5x10-11 M

2. 1x10-3 M and 3x10-11 M

3. 2x10-3 M and 5x10-12 M

4. 3x10-2 M and 4x10-13 M

Subtopic:  Ionisation Constant of Acid, Base & Salt |
 73%
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 relation for calculating pH of a weak base is:

1. pH =pKw -1/2 pKb + 1/2 logc

2. pH =pKw +1/2 pKb - 1/2 logc

3. pH =pKw -1/2 pKa + 1/2 logc

4. none of the above

Subtopic:  Salt Hydrolysis & Titration |
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

Eight mole of a gas AB3 attain equilibrium in a closed container of volume 1 dm3 as,

2 AB3  A2(g) + 3B2(g). If at equilibrium 2 mole of A2 are present then, equilibrium constant is:

1. 72 mol2L-2                     

2. 36 mol2L-2 

3. 3 mol2L-2                       

4. 27 mol2L-2  

Subtopic:  Introduction To Equilibrium |
 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

Which is Lewis base?

1. HCl               

2. HNO3

3. HF               

4. NH3

Subtopic:  Acids & Bases - Definitions & Classification |
 87%
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

For a reversible reaction, if the concentrations of the reactants are doubled, the equilibrium constant will be                                                                                       

1. one-fourth                         

2. halved

3. doubled                             

4. the same

Subtopic:  Introduction To Equilibrium |
 68%
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 molecule that is least likely to act as a Lewis base is:     

1. CO         

2. \(F^{-}\)         

3. AlCl3      

4. PF3

Subtopic:  Acids & Bases - Definitions & Classification |
 67%
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

For a hypothetical equilibrium:

4A + 5B          4x + 6y;
the equilibrium constant Kc has the unit:

1. mol2 litre-2

2. litre mol-1

3. litre2 mol-2

4. mol litre-1

Subtopic:  Kp, Kc & Factors Affecting them |
 82%
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