Assertion (A): Chlorine water has both oxidising as well as bleaching properties.
Reason (R): Chlorine reacts with water to evolve nascent oxygen.

Options

A. Both A and Rare true and R is the correct ex planation of A
B. Both A and Rare true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true

Explanation

To analyze the assertion and reason provided in the question, we will break down the statements and provide a step-by-step explanation.

### Step 1: Understand the Assertion
The assertion states that "Chlorine water has both oxidizing as well as bleaching properties."

- **Oxidizing Properties**: Chlorine (Cl2) is known to act as an oxidizing agent. This means it can accept electrons from other substances, causing those substances to be oxidized.

- **Bleaching Properties**: Chlorine is also used as a bleaching agent. This property is due to its ability to release nascent oxygen when it reacts with water.

### Step 2: Analyze the Reason
The reason states that "Chlorine reacts with water to evolve nascent oxygen."

- When chlorine gas (Cl2) is dissolved in water, it can undergo a reaction that produces hydrochloric acid (HCl) and nascent oxygen (O). The reaction can be represented as:

\[ \text{Cl}_2 + \text{H}_2\text{O} \rightarrow 2\text{HCl} + \text{O} \]

- The nascent oxygen produced in this reaction is highly reactive and is responsible for the bleaching action of chlorine.

### Step 3: Establish the Relationship
Now we need to establish whether the reason correctly explains the assertion.

- The assertion is correct because chlorine water does indeed have oxidizing properties (as it can oxidize other substances) and bleaching properties (due to the release of nascent oxygen).

- The reason is also correct as it accurately describes the reaction of chlorine with water that leads to the formation of nascent oxygen.

- Furthermore, the reason provides a valid explanation for the assertion because the nascent oxygen is what gives chlorine its bleaching properties.

### Conclusion
Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the answer to the question is that both statements are true, and the reason is a correct explanation of the assertion.

### Final Answer
- **Assertion (A)**: True
- **Reason (R)**: True
- **Conclusion**: R is the correct explanation of A.

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