Viscosity of a lyophilic sol is higher than that of its dispersion medium. Why?

Following properties are associated with lyophilic and lyophobic colloids.Classify them seperately, a. There is reversilbllity in colloids. b. These are basically unstable. C.These are coagullated by addding electoloyte. d. Viscosity and surface tension of the sols are much higher than those of dispersion medium.

Surface tension of lyophilic sols is

Bond angle in is PH_4^+ higher than that in PH_3

The first ionization enthalpy of magnesium is higher than that of sodium. Explain.

"Milk is a colloidal solution" a.write its dispersed phase and dispersion medium. B.Write another example for this type of colloid.

A gel is converted into a sol by shaking it with a dispersion medium. After some time it again becomes gel. This property is called:

A gel is converted into a sol by shaking it with a dispersion medium. After some time it again becomes gel.

How are the colloidal solutions classified on the basis of physical states of dispersion medium and dispersed phase?

The boiling point of ethanol is higher than that of methoxy methane. Give reason.

Lyophilic sols are more stable than lyophobic sols because