For a chemical reaction `Ato` Products, the rate of disappearance of A is given by:
`(dC_(A))/(dt)=(K_(1)C_(A))/(1+K_(2)C_(A))` at low `C_(A)`, the reaction is of the _________order with rate constant_________(Assume `K_(1), K_(2)` are lesser than 1)

Options

A. `I,K_(1)//K_(2)`
B. `I,K_(1)`
C. `II,K_(1)//K_(2)`
D. `II,K_(1)//K_(1)+K_(2)`

Answer

B

Explanation

1st order `Kt,x/(C_(0))=(1-e^(-Kt)),C_(t)=C_(0).e^(-Kt)`