Type of collcidal solutions result when `AgNO_(3)`
Solution is added to Kl solution and when Kl solution
is added so `AgNO_(3)` soultion are respectively

Options

A. Negatively and postitvely charged
B. Both negatively charged
C. Positively and negatively charged
D. Both positively charged

Answer

To solve the question regarding the types of colloidal solutions formed when AgNO3 solution is added to KI solution and vice versa, we can follow these steps:

### Step 1: Understand the Reaction
When AgNO3 is added to KI, a chemical reaction occurs, resulting in the formation of silver iodide (AgI) precipitate. This is a key point because the nature of the colloidal solution formed will depend on the ions present in the solution.

### Step 2: Reaction of AgNO3 with KI
The reaction can be represented as:
\[ \text{AgNO}_3 (aq) + \text{KI} (aq) \rightarrow \text{AgI} (s) + \text{KNO}_3 (aq) \]

Here, AgI precipitate is formed. The AgI precipitate can become a colloidal solution depending on the ions that are adsorbed onto its surface.

### Step 3: Determine the Charge of the Colloidal Solution
When AgNO3 is added to KI, the iodide ions (I⁻) from KI will adsorb onto the surface of the AgI precipitate. This results in the formation of a negatively charged colloidal solution because the I⁻ ions are negatively charged.

### Step 4: Reaction of KI with AgNO3
Now, consider the reverse scenario where KI is added to AgNO3. The reaction is the same:
\[ \text{KI} (aq) + \text{AgNO}_3 (aq) \rightarrow \text{AgI} (s) + \text{KNO}_3 (aq) \]

In this case, the Ag⁺ ions from AgNO3 will adsorb onto the surface of the AgI precipitate, leading to the formation of a positively charged colloidal solution.

### Step 5: Conclusion
Thus, when AgNO3 is added to KI, a negatively charged colloidal solution is formed, and when KI is added to AgNO3, a positively charged colloidal solution is formed. Therefore, the final answer is that the types of colloidal solutions formed are negatively charged and positively charged, respectively.

### Final Answer
The correct answer is: **Negatively charged and positively charged.**

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