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.
Name the product when water is added to quicklime.

Options

A. Calcium oxide
B. Calcium hydroxide
C. Calcium dioxide
D. Calcium carbonate

Explanation

To answer the question, "Name the product when water is added to quicklime," we can follow these steps:

### Step-by-Step Solution:

1. **Identify Quicklime**:
Quicklime is chemically known as calcium oxide, and its formula is CaO.

2. **Reaction with Water**:
When quicklime (CaO) is added to water (H2O), a chemical reaction occurs. This reaction can be represented as:
\[ \text{CaO} + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 \]
Here, calcium oxide reacts with water to form calcium hydroxide.

3. **Identify the Product**:
The product formed from the reaction of quicklime and water is calcium hydroxide, which has the chemical formula Ca(OH)₂.

4. **Exothermic Reaction**:
It's important to note that this reaction is exothermic, meaning it releases heat. This is why Suhana observed the water starting to boil even without external heating.

5. **Final Answer**:
Therefore, the product when water is added to quicklime is **calcium hydroxide (Ca(OH)₂)**.