AP EAMCET Engineering 21 Apr 2019 Shift 1 Paper

When white phosphorous is heated with concentrated NaOH inert atmosphere of CO2, the products obtained are as follows,
P4+3NaOH+3H2O

CO2

––––––––🢖

∆

PH3(g)

A

+

3NaH2PO4

B

When (A) is bubbled into aqueous CuSOsolution, products obtained are as follows,
2PH3+3CuSO4→Cu3P2+

3H2SO4

(C)