Acidified solution of chromic acid on treatment with hydrogen peroxide yields

Options

A. `CrO_(3)+H_(2)O+O_(2)`
B. `Cr_(2)O_(3)+H_(2)O+O_(2)`
C. `CrO_(5)+H_(2)O`
D. `H_(2)Cr_(2)O_(7)+H_(2)O+CO_(2)`

Answer

To solve the question regarding the reaction of acidified chromic acid with hydrogen peroxide, we can break it down into the following steps:

### Step 1: Identify the Reactants
The reactants in this scenario are:
- Chromic acid, which can be represented as potassium dichromate (K2Cr2O7) in an acidified solution.
- Hydrogen peroxide (H2O2).

### Step 2: Write the Acidified Chromic Acid Reaction
In an acidified solution, potassium dichromate reacts with sulfuric acid (H2SO4). The reaction can be represented as:
\[ K2Cr2O7 + H2SO4 \rightarrow K2SO4 + H2Cr2O7 \]

### Step 3: Reaction with Hydrogen Peroxide
Now, we will treat the resulting chromic acid (H2Cr2O7) with hydrogen peroxide (H2O2). The reaction can be written as:
\[ H2Cr2O7 + H2O2 \rightarrow CrO5 + H2O \]

### Step 4: Combine the Reactions
Combining both reactions, we have:
\[ K2Cr2O7 + H2SO4 + H2O2 \rightarrow K2SO4 + CrO5 + H2O \]

### Step 5: Identify the Products
From the combined reaction, the products formed are:
- Potassium sulfate (K2SO4)
- Chromium pentoxide (CrO5)
- Water (H2O)

### Conclusion
The final answer to the question is that the acidified solution of chromic acid on treatment with hydrogen peroxide yields CrO5 and H2O.

### Final Answer:
**CrO5 + H2O (Option C)**

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