On heating with concentrated NaOH solution in an inert atmosphere of `CO_(2)` white phorus gives a gas . Which of the following statements is incorrect about the gas ?

Options

A. It is more basic than `NH_(3)`
B. Its solution in water decomposes in the presence of light
C. It is less basic than `NH_(3)`
D. It is highly poisonnous and has smell like rotten fish .

Answer

A

Explanation

`P_(4) +3NOH+3H_(2)O overset (Delta) underset (CO_(2)) to 3NaH_(2)PO_(2)underset ("Phosphine")( +PH_(3) uarr)`
`PH_(3)` is less basic than `NH_(3)` as the electron density is diffused over the larger phosphorus atom .