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				   what fraction of a reactant showing first order remains after 40 mins, if t1/2 is 20 min?

a 1/4
b 1/2
c 1/8
d 1/6
remember ans is d

6 years ago


Answers : (1)


hi deepankar,

ans cannot be d in any case.listen if t1/2 is 20 min then after 40 min. 1/4th of initial amt.will be left.then ans. is a.

6 years ago

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