neutralized and solidified. Thus the air is free from carbon particles. Vii) The blue colour of the sky in nature is due to Tyndall effect of air particles. Viii) Formation of delta: The electrolyte in sea and river water coagulates the solid particles in river water at their intersection.
So, the earth becomes a fertile land. Ix) Analytical application Qualitative and quantitative analysis are based on the various properties of colloids. Hence we can conclude that in our life, there is hardly any field which is not including the applications of colloids. XII U10-Surface XII U10-Surface - - - - Natural honey is a colloidal sol.
It is distinguished from artificial one by adding ammoniacal AgNO In case of natural honey a metallic silver is produced, assumes a reddish yellow color due to traces of albumin or ethereal oil which acts as a protective colloid. In case of artificial honey a dark yellow or greenish yellow precipitate is formed. EVALUATION Choose the correct answer: . For Freundlich isotherm a graph of log m x is plotted against log p.
The slope of the line and its y – axis intercept respectively corresponds to a) n, k b) log n, k c) n, log k d) log n, log k . Which of the following is incorrect for physisorption? a) reversible b) increases with increase in temperature c) low heat of adsorption d) increases with increase in surface area . Which one of the following characteristics are associated with adsorption?
(NEET) a) D D G and H are negative but D S is positive b) D G and ∆ S are negative but ∆ H is positive c) ∆ G is negative but ∆ H and ∆ S are positive d) ∆ G, ∆ H and ∆ S all are negative. . Fog is colloidal solution of a) solid in gas b) gas in gas c) liquid in gas d) gas in liquid . Assertion : Coagulation power of Al + is more than Na .
Reason : greater the valency of