(a) Which poisonous gas is evolved when white phosphorus is heated with conc.NaOH solution? Write the chemical equation involved.
(b) Which noble gas has the lowest boiling point?
(c) Fluorine is a stronger oxidizing agent than chlorine. Why?
(d) What happens when H3PO3 is heated?
(e) Complete the equation :
(c) The electrode potential of F2 and Cl2 are:
Since E∘ for F2/F− is higher than that of Cl2/Cl−, therefore, F2 is more easily reduced than Cl2. As a result, F2 is stronger oxidising agent than Cl2.
(d) It undergoes disproportionation to form PH3 and H3PO4.