Surface Chemistry

Which of the following is a positively charged sol?

Pumice stone is an example of -

Which one is an example of heterogenous catalysis?

Shown below are adsorption isotherms for a gas 'X' at temperatures T1, T2 and T3 :

p and \({x \over m}\) represent pressure and extent of adsorption, respectively. The correct order of temperatures for the given adsorption is :

Given below ae two statements
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order Al3+ > Ba2+ > Na+
Statement II:
In the coagulation of a positive sol, the flocculating power of ...

The right option for the statement "Tyndall effect is exhibited by", is :

Measuring Zeta potential is useful in determining which property of colloidal solution?

Which mixture of the solution will lead to the formation of negatively charged colloidal [AgI] I– sol. ?

On which of the following properties does the
coagulating power of an ion depend?

Which one of the following statements is not correct?

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

Which one of the following characteristics is associated with adsorption?

Fog is a colloidal solution of

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

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

In Freundlich adsorption isotherm, the value of 1/n is

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

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

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

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 slope equal to

Which one of the following forms micelles in aqueous solution above certain concentration?

The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called

According to the adsorption theory of catalysis, the speed of the reaction increases because

Position of non polar and polar part in micelle

Which is not correct regarding the adsorption of a gas on surface of a solid?

Which one of the following method is commonly used method for destruction of colloid?