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True or False Statements : The ratio t...

True or False Statements :
The ratio `t_(1//2) //t_(7//8)` for a first order reaction is equal to `1//3`.

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The correct Answer is:
[T]

`t_(7//8)=3 t_(1//2)`
7/8 part is decay so left is
`1-(7)/(8)=(1)/(8)=(1)/(2^(3))=i.e. 3 t_(1//2)`
`t_(7//8)=3 t_(1//2)`
`(t_(1//2))/(t_(7//8))=(1)/(3)`
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