True or False: Chemical Kinetics (ISC 12)

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   A catalyst lowers the activation energy of a reaction.

2. Statement is true

   No

   Statement

   The rate of a first-order reaction is independent of concentration.

3. Statement is true

   Yes

   Statement

   Half-life of a first-order reaction is independent of initial concentration.

4. Statement is true

   Yes

   Statement

   Increasing temperature generally increases reaction rate.

5. Statement is true

   No

   Statement

   The order of a reaction is always equal to its molecularity.

Instructions

Tap True or False for each statement.