75 % of first order reaction is complete in 30 minutes. What is the time required for 93.75 % of the reaction (in minutes) ?

75% of a first order reaction is completed in 30 min. What ts the time required for 93.75% completion of the reaction (in minutes) ?

A first order reaction is 40% completed in 50 minutes. What is the time required for 90% of the reaction to complete?

A first order of reaction is 75% complete in 18 minute. What is the half-life period for the reaction ?

A 1st order Reaction is 40% complete in 10 minutes. Calculate the time required for 75 % completion.

A first order reaction is 25% complete in 30 minutes. Calculate the time required for 3/4 completion of the reaction.