1.

In the given sequence of first order reaction, A overset(k_(1))to B overset(k_(2))to overset(k_(3))toD What is the ratio of numbers of atoms of A to the number of atoms of B after long time interval starting with pure A, where k_(1) where K_(1) k_(1)=(In2)/(20xx60),k_(2)=(In2)/(30)?

Answer»

`(2)/(3)`
`10`
`20`
`40`

ANSWER :D


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