Asserrtion: Liquid `IF_(5) `conducts electricity.
Reason: Liquid `IF_(5)` conducts as, `2IF_(5) hArr IF_(4)^(+) +IF_(6)^(-)`.

Options

A. If both (A) and (R) are true and (R) is the correct explanation of (A)
B. if both (A) and (R) are true but (R) is not correct explanation of (A)
C. If (A) is true but (R) is false
D. If (A) is false but (R) is true

Explanation

To solve the question, we need to analyze the assertion and the reason provided about the conductivity of liquid IF5.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that liquid IF5 conducts electricity.
- Conductivity in liquids is typically due to the presence of ions that can move freely to carry an electric charge.

**Hint**: Recall that for a substance to conduct electricity, it must have charged particles (ions) that can move.

2. **Analyzing the Reason**:
- The reason provided is that liquid IF5 conducts electricity through the reaction:
\[ 2 \text{IF}_5 \rightleftharpoons \text{IF}_4^+ + \text{IF}_6^- \]
- This reaction indicates that two moles of IF5 can dissociate into one cation (IF4+) and one anion (IF6-).

**Hint**: Consider how the formation of ions from a neutral molecule contributes to conductivity.

3. **Self-Ionization of IF5**:
- The self-ionization of liquid IF5 produces ions, which are necessary for electrical conductivity.
- The presence of both cations and anions confirms that charge carriers are available.

**Hint**: Think about how the presence of both positive and negative ions in a solution allows for the flow of electric current.

4. **Conclusion on the Assertion and Reason**:
- Since the assertion is that liquid IF5 conducts electricity and the reason explains that this conductivity is due to the formation of ions through self-ionization, both the assertion and the reason are correct.
- Furthermore, the reason provides a correct explanation for the assertion.

**Hint**: Evaluate whether the reason logically supports the assertion made.

### Final Answer:
Both the assertion and the reason are true, and the reason is the correct explanation of the assertion.