Read the given passage and answer the questions.
Suhana wanted her house to be white washed, She bought 10 kg of quicklime from the market and dissolved it in 30 L of water. On adding lime to water, she observed that the water started boiling even when it was not being heated.
The correct formula for calcium hydroxide is:

Options

A. Ca(OH)
B. `Ca(OH_(2))`
C. `Ca(OH)_(2)`
D. `Ca_(2)OH_(2)`

Explanation

To find the correct formula for calcium hydroxide, we can follow these steps:

### Step 1: Identify the components involved
- Suhana used quicklime, which is chemically known as calcium oxide (CaO).
- When quicklime is added to water (H2O), it reacts to form calcium hydroxide.

### Step 2: Write the chemical reaction
- The reaction between quicklime (CaO) and water (H2O) can be represented as:
\[ \text{CaO} + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 \]
- In this reaction, calcium oxide reacts with water to produce calcium hydroxide.

### Step 3: Determine the formula for calcium hydroxide
- From the reaction, we can see that the product formed is calcium hydroxide, which is represented as Ca(OH)₂.
- The "Ca" represents one calcium atom, and "(OH)₂" indicates that there are two hydroxide ions (OH⁻) associated with each calcium ion.

### Step 4: Conclusion
- Therefore, the correct formula for calcium hydroxide is **Ca(OH)₂**.

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