1.
For the given hypothetical elementary parallel reaction,

A→k12Bwhere k1k2=12,  k2=2\text{A} \xrightarrow{k_1} 2\text{B} \qquad \text{where } \frac{k_1}{k_2} = \frac{1}{2},\; k_2 = 2


A→k22C\text{A} \xrightarrow{k_2} 2\text{C}


Initially only 2 moles of A are present. The total number of moles of A, B and C at the end of 75% reaction are