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Arsenic sulhpide is a negative sol. The reagent with least precipitating power is

(a) $AlCl_3$

(b) $NaCl$

(c) $CaF_2$

(d) $Glucose$

Can you answer this question?
 
 

1 Answer

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Answer: Glucose
 
Glucose does not produce any ions when dissolved in water. So negative $As_2S_3$ colloid is not coagulated by glucose.

 

answered Dec 14, 2013 by mosymeow_1
 

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