In an inelastic collision , `…………………..` is conserved but `……………..` is not conserved .

Explanation

**Step-by-Step Solution:**

1. **Understanding Inelastic Collision**:
- An inelastic collision is defined as a type of collision where the total kinetic energy of the system is not conserved. This means that some of the kinetic energy is transformed into other forms of energy, such as heat or sound.

2. **Conservation of Momentum**:
- In any collision, including inelastic collisions, the law of conservation of momentum applies. This means that the total momentum of the system before the collision is equal to the total momentum of the system after the collision.

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