Question

Which poisonous gas is evolved when white phosphorus is heated with concentrated naoh solution?

Answer 1

When phosphorous reacts with NaOH, it produce phosphine and Sodium hypophosphite. Phosphine is a gas which is evolved when white phosphorous is heated with conc. NaOH solution. It is a colourless, odourless gas.

Answer 2

$\huge\red{heya!!!!}$

phospine and sodium hypophoshite