Which of the following statements are true?
(a) Only type of interactions between particles of nobel gases are due to weak dispersion forces.
(b) Ionisation enthalphy of molecular oxygen is very close that of xenon.
(c ) Hydrolysis of `XeF_(6)` is a redox reaction.
(d) Xenon fluorides are not reactive.

Explanation

To determine which of the statements are true, let's analyze each one step by step.

### Step 1: Analyze Statement (a)
**Statement (a):** Only type of interactions between particles of noble gases are due to weak dispersion forces.

**Solution:**
Noble gases are monoatomic and have a complete valence shell, which makes them chemically inert. The only type of intermolecular forces present in noble gases are London dispersion forces (weak dispersion forces). These forces arise due to temporary dipoles that occur when electron distributions around atoms fluctuate. Thus, this statement is **true**.

### Step 2: Analyze Statement (b)
**Statement (b):** Ionization enthalpy of molecular oxygen is very close to that of xenon.

**Solution:**
The ionization enthalpy of molecular oxygen (O₂) is approximately 1166 kJ/mol, while that of xenon (Xe) is about 1170 kJ/mol. Since these values are very close to each other, this statement is also **true**.

### Step 3: Analyze Statement (c)
**Statement (c):** Hydrolysis of XeF₆ is a redox reaction.

**Solution:**
When XeF₆ reacts with water, it produces xenon trioxide (XeO₃) and hydrofluoric acid (HF). In this reaction, the oxidation state of xenon remains +6 before and after the reaction (Xe in XeF₆ and Xe in XeO₃). Since there is no change in the oxidation states of xenon or the other elements involved, this is not a redox reaction. Therefore, this statement is **false**.

### Step 4: Analyze Statement (d)
**Statement (d):** Xenon fluorides are not reactive.

**Solution:**
Xenon is generally considered inert, but when it forms compounds with highly electronegative elements like fluorine, it can exhibit reactivity. Xenon fluorides, such as XeF₂, XeF₄, and XeF₆, are indeed reactive and can participate in chemical reactions. Thus, this statement is **false**.

### Final Summary of Statements:
- (a) True
- (b) True
- (c) False
- (d) False

### Conclusion:
The true statements are (a) and (b).

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