Statement-1 : Neutralisation reaction is an Endothermic Process.
Statement-2 : Standard Enthalpy of Neutralisation for different pairs of strong acid and strong base are different.
Statement-3 : Standard Enthalpy of Neutralisation for a pair of strong acid and strong base is higher than that of weak acid and weak base.

Options

A. F F T
B. F T T
C. T F T
D. F T F

Answer

To analyze the statements provided in the question, we will evaluate each statement regarding the neutralization reaction and its thermodynamic properties.

### Step-by-Step Solution:

1. **Evaluate Statement 1: "Neutralisation reaction is an Endothermic Process."**
- A neutralization reaction occurs when an acid reacts with a base to form water and a salt. This process typically releases energy because the formation of water (H₂O) from H⁺ and OH⁻ ions is exothermic. Therefore, this statement is **false**.

2. **Evaluate Statement 2: "Standard Enthalpy of Neutralisation for different pairs of strong acid and strong base are different."**
- The standard enthalpy of neutralization for strong acids and strong bases is generally consistent because it primarily depends on the formation of water from H⁺ and OH⁻ ions. Since the reaction between any strong acid and strong base yields the same products (water and salt), the enthalpy change is essentially the same. Thus, this statement is also **false**.

3. **Evaluate Statement 3: "Standard Enthalpy of Neutralisation for a pair of strong acid and strong base is higher than that of weak acid and weak base."**
- The enthalpy of neutralization for strong acids and strong bases is typically around -57.1 kJ/mol (or -13.7 kcal/mol). In contrast, when a weak acid or weak base is involved, some energy is consumed in the ionization of the weak acid or weak base, resulting in a lower (less negative) enthalpy of neutralization. Therefore, this statement is **true**.

### Conclusion:
- Statement 1: False
- Statement 2: False
- Statement 3: True

The final answer is: **False, False, True**.