MEDIUM
JEE Main
IMPORTANT
Earn 100

Statement I: For colloidal particles, the values of colligative properties are of small order as compared to values shown by true solutions at same concentration.

Statement II: For colloidal particles, the potential difference between the fixed layer and the diffused layer of same charges is called the electrokinetic potential or zeta potential.

In the light of the above statements, chooses the correct answer from the options given below.

 

50% studentsanswered this correctly

Important Questions on Surface Chemistry

EASY
JEE Main
IMPORTANT

The number of statement/s which are the characteristics of physisorption is ___________.

A. It is highly specific in nature

B. Enthalpy of adsorption is high

C. It decreases with increase in temperature

D. It results into unimolecular layer

E. No activation energy is needed

MEDIUM
JEE Main
IMPORTANT

The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph

(a)
Question Image 

(b)
Question Image 

(c)
Question Image 

(d)
Question Image 

MEDIUM
JEE Main
IMPORTANT

The number of incorrect statement/s from the following is/are

A. Water vapours are adsorbed by anhydrous calcium chloride.

B. There is a decrease in surface energy during adsorption.

C. As the adsorption proceeds, ΔH becomes more and more negative.

D. Adsorption is accompanied by decrease in entropy of the system.

MEDIUM
JEE Main
IMPORTANT
Which of the following salt solutions would coagulate the colloid soloution formed when FeCl3 is added to NaOH solution, at the fastest rate?
MEDIUM
JEE Main
IMPORTANT

The graph of logxmvs log p for an adsorption process is a straight line inclined at an angle of 45° with intercept equal to 0.6020. The mass of gas adsorbed per unit mass of adsorbent at the pressure of 0.4 atm is _____×10-1 (Nearest integer)

Given : log2=0.3010

MEDIUM
JEE Main
IMPORTANT

Adding surfactants in non polar solvent, the micelles structure will look like

(a)

Question Image

(b)

Question Image

(c)

Question Image

 

(d)

Question Image

 

 

 

 

EASY
JEE Main
IMPORTANT

Match List I with List II

List I List II
A Physisorption I Single Layer Adsorption
B Chemisorption II 20-40 kJ mol-1
C N2g+3H2gFe(s)2NH3g III Chromatography
D Analytical Application or Adsorption IV Heterogeneous catalysis

Choose the correct answer from the options given below:

MEDIUM
JEE Main
IMPORTANT

In figure, a straight line is given for Freundrich Adsorption (y=3x+2.505). The value of 1n and logK are respectively.

Question Image