Question

Statement - I : If in a zero order reaction, the concentration of the reactant is doubled, the half-life period is also doubled.
Statement - Il: For a zero order reaction, the rate of reaction is independent of initial concentration.

• A. Both statements are true. Statement - Il is correct explanation of Statement - I
• B. Both statements are true but Statement -Il is not correct explanation of Statement - I
• C. Statement - I is true but Statement - Il is false
  
• D. Statement - I is false but Statement - Il is true

Answer 1

The correct option is B Both statements are true but Statement -Il is not correct explanation of Statement - I

For a zero-order reaction, $t_{1/2}=\frac{[A{]}_0}{2k}$.
Hence, if in a zero order reaction, the concentration of the reactant is doubled, the half-life period is also doubled.
The rate of a zero-order reaction is independent of the concentration of the reaction. The reaction proceeds at constant rate throughout.
Thus, both statements are true but Statement -II is not correct explanation of Statement - I.