Question

6. The rate of reaction depends on temperature, concentration, particle size and catalyst. Which statement is not correct? A Catalysts can be used to increase the rate of reaction. B Higher concentration decreases the rate of reaction. C Higher temperature increases the rate of reaction. D Larger particle size decreases the rate of reaction.​

Answer 1

Statement B is not correct.

Step-by-step explanation:

Higher concentration typically increases the rate of reaction, not decreases it. This is because a higher concentration of reactants means that there are more particles colliding with each other, increasing the likelihood of successful collisions and therefore increasing the rate of reaction.

The other statements are all correct. Catalysts can be used to increase the rate of reaction by providing an alternative reaction pathway with a lower activation energy. Higher temperature increases the rate of reaction by increasing the kinetic energy of the particles, making them move faster and collide more frequently. Smaller particle size increases the rate of reaction by increasing the surface area available for reactions to take place.