According to the collision theory: (A) All collisions are effective. (B) All collisions are sufficiently violent. (C) All collisions are responsible for product formation. (D) Only a fraction of collisions are effective which have enough energy to form products.

Answer: (D) Only a fraction of collisions are effective which have enough energy to form products.

The collision theory states that a chemical reaction can only occur between particles when they collide (hit each other). The collision between reactant particles is necessary but not sufficient for a reaction to take place. The collisions also have to be effective

  • According to collision theory, the rate of reaction is proportional to the number of collisions per second.
  • All the collisions will not result in the formation of a product.
  • Only those collisions where molecules have enough activation energy and proper orientation will lead to a chemical reaction.

Articles to Explore:

  1. What are collisions? Explain the possible types of collisions.
  2. What Is Effective Collision?

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