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Chemistry
Coagulating power or flocculating value
For coagulation ml ferric hydroxide solution, ml of $0.5M$ \[KCl\] is required. What is the coagulation value of \[KCl\]?
A) $5$
B) $10$
C) $100$
D) None of these
Chemistry
Coagulating power or flocculating value
What is lyophilic colloids coagulation?
Chemistry
Coagulating power or flocculating value
Flocculation value is expressed in terms of
(A) mill mole per litre
(B) mole per litre
(C) gram per litre
(D) mole per millilitre

Chemistry
Coagulating power or flocculating value
What are lyophilic and lyophobic sols? Give one example of each type. Why are hydrophobic sols easily coagulated?

Chemistry
Coagulating power or flocculating value
Delta formation at the mouth of river takes place by:
A. Coagulation of negative salt ions and positive river particles
B. Coagulation of positive salt ions and negative river particles
C. Coagulation of positive salt ions and positive river particles
D. Coagulation of negative salt ions and negative river particles

Chemistry
Coagulating power or flocculating value
What is coagulation? Explain.

Chemistry
Coagulating power or flocculating value
The coagulation of 200 mL of a positive colloid took place when 0.73g HCl was added to it. The flocculation value of HCl for the colloid is:
A. 150
B. 200
C. 100
D. 36.5
Chemistry
Coagulating power or flocculating value
Flocculation value is expressed in terms of:
(A) millimole per litre
(B) mol per litre
(C) gram per litre
(D) mol per millilitre

Chemistry
Coagulating power or flocculating value
Alums purify muddy water by:
A. Dialysis
B. Absorption
C. Coagulation
D. Forming true solution

Chemistry
Coagulating power or flocculating value
Which of the following act as the best coagulating agent for ferric hydroxide sol?
(A)- Potassium ferrocyanide
(B)- Potassium chloride
(C)- Potassium oxalate
(D)- Aluminium chloride

Chemistry
Coagulating power or flocculating value
The coagulation power of an electrolyte for blood decreases in the order:
A. $N{a^ + },B{a^{2 + }},A{l^{3 + }}$
B. $PO_4^{3 - },SO_4^{2 - },C{l^ - }$
C. \[A{l^{3 + }},B{a^{2 + }},N{a^ + }\]
D. $C{l^ - },SO_4^{2 - },PO_4^{3 - }$
Chemistry
Coagulating power or flocculating value
Which of the following electrolytes will have maximum flocculation value for \[Fe{\left( {OH} \right)_3}\] sol?
A.NaCl
B. \[N{a_2}S\]
C. \[{\left( {N{H_4}} \right)_3}P{O_4}\]
D. \[{K_2}S{O_4}\]

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