# For the first order reaction at $27^{\circ}C,$ the radio of time required for $75 \%$ completion to $25 \%$ completion of reaction is :

$\begin {array} {1 1} (1)\;3.0 & \quad (2)\;2.303 \\ (3)\;4.8 & \quad (4)\;0.477 \end {array}$

## 1 Answer

(3) 4.8
answered Nov 7, 2013 by

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