A) The number of mg of lyophilic colloid which should be added to 10 ml of ferric hydroxide sol so as to prevent its coagulation by the addition of 1 ml of 10% sodium chloride solution
B) The number of mg of lyophilic colloid which should be added to 10 ml of standard gold sol so as to prevent its coagulation by the addition of 1 ml of 10% \[NaCl\]
C) The mg of gold salt to be added to a lyophilic colloid to coagulate it
D) The mg of an electrolyte required to coagulate a colloid
Correct Answer: B
Solution :
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