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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: kururu51116 on April 24, 2014, 12:38:39 AM

Title: Complex ion question?
Post by: kururu51116 on April 24, 2014, 12:38:39 AM

ZnS is slightly soluble ionic compound in water. In a solution of which of the
compounds the solubility of ZnS will increase?
 
a. PtCl4
b. ZnCl2
c. NaCN
d. CaCO3
e. PbSO4

Answer in C... why? :(

Title: Re: Complex ion question?
Post by: Hunter2 on April 24, 2014, 11:40:43 AM

Check Cyanides are one of the best complex builder. With cyanides its also possible to dissolve gold. A dirty work sometimes done in simple gold mines and claims.