Which property of the colloidal solution is independent of charge on the colloidal particles?

Which property of colloids is not dependent on the charge on colloidal particles?

1. Coagulation

2. Electrophoresis

3. Electro-osmosis

4. Tyndall effect

Which of the following statements is correct for the spontaneous adsorption of a gas?

In the Freundlich adsorption isotherm, the value of 1/n is:
1. Between 0 and 1 in all cases.
2. Between 2 and 4 in all cases.
3. 1 in the case of physical adsorption.
4. 1 in the case of chemisorption.

Which one of the following statements about enzyme catalysis is incorrect?

The protecting power of lyophilic colloidal sol is expressed in terms of:

1. Coagulation value

2. Gold number

3. Critical micelle concentration

4. Oxidation number

If x is the amount of adsorbate and m is the amount of adsorbent, which of the following relations is not related to adsorption process?

1.  $\frac{\mathrm{x}}{\mathrm{m}}=\mathrm{f}\left(\mathrm{T}\right)$ $\mathrm{at}$ $\mathrm{constant}$ $\mathrm{P}$

2.  $\mathrm{p}=\mathrm{f}\left(\mathrm{T}\right)$ $\mathrm{at}$ $\mathrm{constant}$ $\left(\mathrm{x}/\mathrm{m}\right)$

3.  $\frac{\mathrm{x}}{\mathrm{m}}=\mathrm{p}\times \mathrm{T}$

4.  $\frac{\mathrm{x}}{\mathrm{m}}=\mathrm{f}\left(\mathrm{p}\right)$ $\mathrm{at}$ $\mathrm{constant}$ $\mathrm{T}$

The Langmuir adsorption isotherm is deduced using the assumption:

A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with a slope equal to:

1. log 

2. n

3. $\frac{1}{n}$

4. log 1/k