Question

Which among the following is a false statement?

• A. Rate of zero order reaction is independent of initial concentration of reactant.
• B. Half-life of a zero order reaction is inversely proportional to the rate constant.
• C. Molecularity of a reaction may be zero.
• D. For a first order reaction, \( t_{1/2} = 0.693/k \).

Hint:

Molecularity is always a positive integer, representing the number of molecules involved in an elementary reaction step.

Answer 1

The Correct Option is C

Step 1:Molecularity refers to the number of reacting species in an elementary reaction, and it cannot be zero. A reaction cannot occur with zero reacting molecules. 

Step 2: Thus, the correct answer is option (3).