p-Block elementsHard

Question

White phosphorus may be removed from red phosphorus by :

Options

A.sublimation
B.distillation
C.heating
D.heating with an alkali solution

Solution

Red phosphorus is inert towards sodium hydroxide but white phosphorus reacts according to following reaction.   P4 + 3NaOH + 3H2O → PH3 + 3NaH2PO2

Create a free account to view solution

View Solution Free
Topic: p-Block elements·Practice all p-Block elements questions

More p-Block elements Questions

Which of the following is the increasing order of enthalpy of vapourisation ?...Aluminium is more reactive than iron. But aluminium is less easily corroded than iron because:...When chlorine water is added to a solution of KBr, the solution immediately turns orange red, because...Which of the following hydrides of the oxygen family shows the lowest boiling point?...The oxide that gives H2O2 on treatment with a dilute acid is :...