In a first order reaction, the time required for the completion of 99% is _______ for its 90% completion.
A. Same
B. Negligible
C. Thrice
D. Twice
Answer:D
In a first order reaction, the time required for the completion of 99% is _______ for its 90% completion.
A. Same B. Negligible C. Thrice D. Twice
Explanation: In a first order reaction, the time required for the completion of 99% is twice for its 90% completion. ln [A] = -kt + ln [A0].