As2S3 sol is

1. possible colloid                 2. negative colloid

3. neutral colloid                  4. none of the above

Subtopic:  Colloidal Solution |
 90%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

At the critical micelle concentration (CMC) the surfactant molecule

1. Decompose

2. Dissociate

3. Associate

4. Become completely soluble

Subtopic:  Emulsions |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which one has the highest coagulation power?

(1) K+

(2) Ca++

(3) Al+++

(4) Sn4+

Subtopic:  Colloidal Solution |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

The charge on As2S3 sol is due to to the adsorbed:-

(1) H+

(2) OH-

(3) O-2

(4) S-2

Subtopic:  Colloidal Solution |
 96%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The most suitable electrolyte for the coagulation of arsenic sulphide will be:-

(1) AlCl3

(2) BaCl2

(3) NaCl

(4) KCl

Subtopic:  Colloidal Solution |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

According to freundlich adsorption isotherm, which of the following is correct:-

(1) xmα p°

(2) xmα p

(3) xmα p1/n

(4) All are correct for different ranges of pressure

Subtopic:  Adsorption Isotherm |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Which one of the following statements is not correct?
(a) Catalyst does not initiate any reaction

(b) The value of equilibrium constant is changed in the presence of a catalyst in the reaction equilibrium

(c) Enzymes catalyse mainly biochemical reaction

(d) Coenzymes increase the catalytic activity of enzyme

Subtopic:  Catalyst |
 84%
NEET - 2017
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As2S3 are given below

I. (NaCl) =52               II. (BaCl2) =0.69       III. (MgSO4) = 0.22

The correct order of their coagulating power is

(1) I > II > III                 

(2) II > I > III

(3) III > II >I                 

(4) III > I > II

Subtopic:  Colloidal Solution |
 83%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The addition of a catalyst during a chemical reaction alters which of the following quantities?

(a) Internal energy
(b) Enthalpy
(c) Activation energy
(d) Entropy

Subtopic:  Catalyst |
 94%
NEET - 2016
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Which one of the following characteristics is associated with adsorption?

(1) G, H and S all are negative

(2) G and H are negative but S is positive

(3) G and S are negative but H is positive

(4) G is negative but H and S are positive

Subtopic:  Adsorption and Absorption |
 86%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch