Question

# The half-life of a first order reaction is 24 hrs. If we start with 10 M initial concentration of the reactant then conc. after 96 hrs will be

A
6.25 M
B
1.25 M
C
0.125 M
D
0.625 M

Solution

## The correct option is D 0.625 M1024 hrs−−−→524 hrs−−−→2.524 hrs−−−→1.2524 hrs−−−→0.625

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