How many times of the half-life will require to complete `75%` of a reaction of first order?

Show that the time required for the completion of 75% of a reaction of first order is twice the time required for the completion of 50% of the reaction.

Show that for a first order reaction the time required to complete 75% of reaction is about 2 times more than that required to complete 50% of the reaction.

75% of a first order reaction completed in 32 minutes then, the time required to complete 99.9% of a reaction in seconds is

For certain first order reaction, 75% of the reaction complete in 30 min. How much time it require to complete 99.9% of the reaction ?

For certain first order reaction, 75% of the reaction complete in 30 min. How much time it require to complete 99.9% of the reaction ?

Half life of a first order reaction is 69.3 minutes. Time required to complete 99.9% of the reaction will be :

Half life of a first order reaction is 69.3 minutes. Time required to complete 99.9% of the reaction will be :