How do you characterizes `PbCrO_(4)`?

Options

A. It is yellow in collour
B. It is soluble in `NaOH`
C. It is insoluble in `CH_(3)COOH`
D. All fo the above

Answer

To characterize \( \text{PbCrO}_4 \) (Lead Chromate), we will analyze its properties step by step.

### Step 1: Color of \( \text{PbCrO}_4 \)
- **Observation**: Lead Chromate is known for its distinct yellow color.
- **Conclusion**: This indicates that the first statement regarding its color is true.

### Step 2: Solubility in Sodium Hydroxide (\( \text{NaOH} \))
- **Reaction**: When \( \text{PbCrO}_4 \) is treated with \( \text{NaOH} \), it reacts to form \( \text{Pb(OH)}_4 \) and \( \text{CrO}_4^{2-} \).
- **Result**: The product is a blue amorphous powder, indicating that \( \text{PbCrO}_4 \) is soluble in \( \text{NaOH} \).
- **Conclusion**: This means the second statement is also true.

### Step 3: Solubility in Acetic Acid (\( \text{CH}_3\text{COOH} \))
- **Reaction**: When \( \text{PbCrO}_4 \) is treated with acetic acid, it forms \( \text{Pb(CH}_3\text{COO)}_2 \) and \( \text{H}_2\text{CrO}_4 \).
- **Result**: The lead chromate precipitates out as a solid, which is white in color, indicating that it is insoluble in acetic acid.
- **Conclusion**: Thus, the third statement is also true.

### Final Conclusion
Since all the statements regarding the properties of \( \text{PbCrO}_4 \) (its color, solubility in \( \text{NaOH} \), and insolubility in \( \text{CH}_3\text{COOH} \)) are correct, we can conclude that all of the above options are correct.