Blood is a colloidal solution of a __(i)__ substance. The styptic action of ___(ii)___ and __(iii)___ solution is due to __(iv)___ of blood forming a clot which stops further bleeding.
The process of settling of colloidal particles is called coagulation or precipitation of the sol.
The minimum concentration of an electrolyte in millimoles per litre required to cause precipitation of a sol in two hours is called coagulating value.
Blood is a colloidal solution of an albuminoid substance. The styptic action of alum and ferric chloride solution is due to coagulation of blood forming a clot which stops further bleeding.
So, option $$B$$ fills up the correct answers.
The coagulation values in millimoles per litre of the electrolytes used for the coagulation of $$As_2S_3$$ are given below: I. $$(NaCl) = 52$$ II. $$(BaCl_2) = 0.69$$ III. $$(MgSO_4) = 0.22$$ The correct order of their coagulating power is :
On which of the following properties does the coagulating power of an ion depend?
Under the influence of an electric field the particles in a sol migrate towards cathode. The coagulation of the same sol is studied using $$NaCl$$ , $$Na_2SO_4$$ and $$Na_3PO_4$$ solutions. Their coagulation values will be in maximum for
What is the correct sequence of the increasing coagulation value of the following electrolyte for the coagulation of ferric hydroxide solution ? (I) $$Na_3PO_4$$ (II) $$KCl$$ (III) $$K_{2}SO_{4}$$ (IV) $$ K_{4} [Fe(CN)_6] $$
Ferric hydroxide sol is positively charged colloid. The coagulating power of $$ NO^{-}_{3} $$,$$ SO^{2-}_{4} $$ and $$ PO^{3-}_{4} $$ ions would be in the order:
Which of the following electrolytes have maximum coagulating power?
Which of the following will have highest coagulating power for $$ AS_{2}S_{3} $$ colloid
For coagulating $$ As_{2}S_{3} $$ colloidal sol, which of the following will have lowest coagulation value
Colloidal solution of arsenious sulphide is coagulated by
The coagulation power of an electrolyte for arsenious sulphide decreases in the order