Q55. Consider the two different first order reactions given below $\mathrm { A } + \mathrm { B } \rightarrow \mathrm { C }$ (Reaction 1) $P \rightarrow Q$ (Reaction 2) The ratio of the half life of Reaction 1 : Reaction 2 is $5 : 2$. If $t _ { 1 }$ and $t _ { 2 }$ represent the time taken to complete $2 / 3 ^ { \text {rd } }$ and $45 ^ { \text {th } }$ of Reaction 1 and Reaction 2, respectively, then the value of the ratio $t _ { 1 } : t _ { 2 }$ is $\_\_\_\_$ $\times 10 ^ { - 1 }$ (nearest integer). [Given : $\log _ { 10 } ( 3 ) = 0.477$ and $\log _ { 10 } ( 5 ) = 0.699$ ]
Q55. Consider the two different first order reactions given below $\mathrm { A } + \mathrm { B } \rightarrow \mathrm { C }$ (Reaction 1) $P \rightarrow Q$ (Reaction 2) The ratio of the half life of Reaction 1 : Reaction 2 is $5 : 2$. If $t _ { 1 }$ and $t _ { 2 }$ represent the time taken to complete $2 / 3 ^ { \text {rd } }$ and $45 ^ { \text {th } }$ of Reaction 1 and Reaction 2, respectively, then the value of the ratio $t _ { 1 } : t _ { 2 }$ is $\_\_\_\_$ $\times 10 ^ { - 1 }$ (nearest integer). [Given : $\log _ { 10 } ( 3 ) = 0.477$ and $\log _ { 10 } ( 5 ) = 0.699$ ]