1.

A first order reaction was started with a decimolar solution of the reactant, 8 minutes and 20 seconds later its concentration was found to be \[M/100\]. So the rate of the reaction is                [Kerala PMT 2004]

A.                 \[2.303\times {{10}^{-5}}\ {{\sec }^{-1}}\]            
B.                 \[2.303\times {{10}^{-4}}\ {{\sec }^{-1}}\]
C.                 \[4.606\times {{10}^{-3}}\ {{\sec }^{-1}}\]
D.                 \[2.606\times {{10}^{-5}}\ {{\sec }^{-1}}\]
E.                 \[2.603\times {{10}^{-4}}\ {{\sec }^{-1}}\]
Answer» D.                 \[2.606\times {{10}^{-5}}\ {{\sec }^{-1}}\]


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