`CuSO_(4).5H_(2)Oundersetto(100)^(0)C[X](S) undersetto (250^(0))C[Y](S)`

Options

A. `X` and `Y` are `CuSO_(4).3H_(2)O` and `CUSO_(4)`
B. `X` and `Y` are `CuSO_(4).3H_(2)O` and `CUSO_(4).H_(2)O`
C. `X`and `Y` are `CuSO_(4).H_(2)O` and `CuSO_(4)`
D. `X` and `Y` are `CuSO_(4)` and `CuO`

Explanation

To solve the question regarding the thermal decomposition of copper sulfate pentahydrate (CuSO₄·5H₂O), we will follow these steps:

### Step 1: Identify the initial compound
The initial compound given is copper sulfate pentahydrate, which is represented as CuSO₄·5H₂O. This compound contains five molecules of water of crystallization.

**Hint:** Remember that the "·5H₂O" indicates the presence of water molecules in the crystal structure.

### Step 2: Heating at 100°C
...