Radioactive decay follows first order kinetics and the rate constant is often termed as decay constant. Certain radioactive substance may undergo sequential decays in order to convert into a stable necleus The series comprising all such elements is termed as radioactive disintegration series. A substance A undergoes sequential decay as shown A overset(lambda_(1))rarrBoverset(lambda_(2))rarr C. if the decay constant lambda_(1) and lambda_(2) are 4xx10^(-2) min^(-1)and 16xx10^(5) min^(-1) respectively then the molar ratio of B to A after a very long time will be:

Radioactive decay follows first order kinetics and the rate constant i

1.	Radioactive decay follows first order kinetics and the rate constant is often termed as decay constant. Certain radioactive substance may undergo sequential decays in order to convert into a stable necleus The series comprising all such elements is termed as radioactive disintegration series. A substance A undergoes sequential decay as shown A overset(lambda_(1))rarrBoverset(lambda_(2))rarr C. if the decay constant lambda_(1) and lambda_(2) are 4xx10^(-2) min^(-1)and 16xx10^(5) min^(-1) respectively then the molar ratio of B to A after a very long time will be:
Answer» `2.5xx10^(-8)` `4XX10^(-2)` `1/16xx10^(-5)` `4xx10^(7)` ANSWER :A