What is the time required for 75 percent completion of a first-order – McqOptions

MCQOPTIONS

1.	What is the time required for 75 percent completion of a first-order reaction?
A.	3 × t50
B.	4 × t50
C.	4.5 × t50
D.	2 × t50
Answer» E.

Discussion

No Comment Found

Related MCQs

A first-order reaction is 50 percent complete in 30 minutes. Calculate the time taken for completion of 87.5 percent of the reaction.
What is the time required for 75 percent completion of a first-order reaction?
For the reaction X → Y + Z, the rate constant is 0.00058 s-1. What percentage of X will be decomposed in 50 minutes?
What is the time taken to complete 75 percent of the reaction if the rate of the first-order reaction is 0.023 min-1?
A first-order reaction was 70 percent complete in 20 minutes. What is the rate constant of the reaction?
The half-life of a given reaction is doubled if the initial concentration of the reactant is doubled. What is the order of the reaction?
The unit of the rate constant of a zero-order reaction and second-order reaction is same.
The unit of rate constant of a first-order reaction is s-1.
What is the formula to calculate the time taken for the completion of a zero-order reaction?
The decomposition of N2O5 in CCl4 solution was studied. N2O5 → 2NO2 + 1/2O2. The rate constant of the reaction is 6.2 x 10-4 sec-1. Calculate the rate when the concentration of N2O5 is 1.25 molar.