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(a)what happens when few drops of …

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(a)what happens when few drops of silver nitrate solution is added to a test tube containing KI solution and shaken (b)what is the mobile layer formed in electric double layer formed by colloidal solution formed above

Posted by Prabhjot Kaur 7 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Hitesh Kumar 7 years, 10 months ago

✔✔When a dilute solution of silver nitrate is added to a slight excess of dilute solution of potassium iodide, a negatively charged sol of silver iodide is formed (I- ion is preferred here). It is due to the adsorption of iodide ions (I-) from the dispersion medium on the precipitate of silver iodide (AgI). AgI + I− → [AgI]I- (negatively charged AgI sol)

Radhika Tyagi 7 years, 10 months ago

AgI is formed. It is negatively charged. The mobile layer is of I^-ions

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