For a reaction of order n, the unit of the rate constant is :

Which one of the following given graphs represents the variation of rate constant (k) with temperature (T) for an endothermic reaction?

In Freundlich adsorption isotherm, slope of AB line is :

Most suitable salt which can be used for efficient clotting of blood will be :

In Freundlich adsorption isotherm at moderate pressure, the extent of adsorption \left( {{x \over m}} \right) is directly proportional to Px. The value of x is :

Which one of the following statements is FALSE for hydrophilic sols?

The nature of charge on resulting colloidal particles when FeCl3 is added to excess of hot water is :

The INCORRECT statements below regarding colloidal solutions is :

A colloidal system consisting of a gas dispersed in a solid is called a/an :

For the coagulation of a negative sol, the species below, that has the highest flocculating power is :

The charges on the colloidal CdS sol and TiO2 sol are, respectively :

The conditions given below are in the context of observing Tyndall effect in colloidal solutions : (A) The diameter of the colloidal particles is comparable to the wavelength of light used. (B) The diameter of the colloidal particles is much smaller than the wavelength of light used. (C) The diameter of the colloidal particles is much larger than the wavelength of light used. (D) The refractive indices of the dispersed phase and the dispersion medium are comparable. (E) The dispersed phase has a very different refractive index from the dispersion medium. Choose the most appropriate conditions from the options given below :

When silver nitrate solution is added to potassium iodide solution then the sol produced is :

Match List I with List II : List-I Example of colloids List - II Classification (a) Cheese (i) dispersion of liquid in liquid (b) Pumice stone (ii) dispersion of liquid in gas (c) Hair cream (iii) dispersion of gas in solid (d) Cloud (iv) dispersion of liquid in solid Choose the most appropriate answer from the options given below

Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?

The sol given below with negatively charged colloidal particles is :

Tyndall effect is more effectively shown by :

Lyophilic sols are more stable than lyophobic sols because :

Select the graph that correctly describes the adsorption isotherms at two temperatures T1, and T2 (T1 > T2) for a gas : (x - mass of the gas absorbed ; m - mass of adsorbent ; P - pressure)

Match List - I with List - II : Choose the most appropriate answer from the options given below.