phosphorous

The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorous containing compound. The reason type , the oxidation state of phosphorous in phosphine and in the other products are, respectively,

The formula of meta phosphoric acid is

The basicity of phosphoric acid is _____ .

Meta phosphoric acid has the formula

Mention the steps involved in ionsiation of phosphoric acid

What happens when phosphoric acid is heated ?