For firt order reaction, fraction fo colllisions with proper orientation of colloiding molecules is `1xx10^(-2)`, collision frequency is `2xx10^(4)` and fraction of successive collisions is `0.5xx10^(3)`, then the rate constant for the reaction is

Options

A. `25.xx10^(-4)` per sec
B. `1xx10^(5)` per sec
C. `1xx10^(9) mol dm^(3) //s`
D. `1xx10^(5) mol dm^(3) //s`

Answer

B

Explanation

K= (orrientation of eolloidal molecules) `xx` (collission frquency) `xx` (fraction of sucessive collision)
`1xx10^(-2)xx2xx10^(4)xx0.5xx10^(3)`
`=1xx10^(5)` per sec