Oxyacids of Phosphorus: Preparation, Structure, Properties and Uses

The number of $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bonds in the structure of phosphorous pentaoxide and phosphorous trioxide are respectively.($6,6/6,10$)

The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and phosphonic acid is:

Match List-I with List-II 

Choose the correct answer from the options given below :

The structure of ${\mathrm{H}}_3{\mathrm{PO}}_3$ is

What is the lowest oxidation state possessed by phosphorus in its oxyacids?

How many $\mathrm{P}-\mathrm{O}-\mathrm{P}$ linkage (s) are present in ${\mathrm{P}}_4{\mathrm{O}}_{12}^{-4}$?

For ${\mathrm{H}}_3{\mathrm{PO}}_3$ and ${\mathrm{H}}_3{\mathrm{PO}}_4$, the correct choice is-

For next two question please follow the same

Phosphorus forms a number of oxoacids which differ in their structures and oxidation state of phosphorus. All the acids contain phosphorus atom/atoms linked tetrahedrally to four other atoms or groups. Each of them has at least one P = O or $\text{P} \to \text{O}$ unit and one P - OH unit. The -OH group is ionisable but H atom linked directly to P is non-ionisable. Structures of all the  acids are considered to be derived either from phosphorus acid or phosphoric acid.

Which one is mono-basic acid?

The statement that is not correct is

The pair in which phosphorus atoms have a formal oxidation state of $+3$ is
 

The maximum number of $\mathrm{P}-\mathrm{H}$ bonds are contained in which of the following molecules?
 

Which of the following statements is not valid for oxoacids of phosphorus?
 

Which among the following oxoacids of phosphorus shows a tendency of disproportionation?

The structure of ${\mathrm{P}}_4{\mathrm{O}}_{10}\mathrm{ }\left(\mathrm{x}\right)$ is as follows




What is the value of $\mathrm{\prime }\mathrm{\prime }\mathrm{n}\mathrm{\prime }\mathrm{\prime }$ ?

What is the oxidation state of phosphorous in ${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_6$, and ${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7$?

Name and draw the structures of different oxyacids of phosphorous.

What are the basicity of ${\mathrm{H}}_3{\mathrm{PO}}_4$ and ${\mathrm{H}}_3{\mathrm{PO}}_3?$

Why does ${\mathrm{H}}_3{\mathrm{PO}}_2$ behave as reducing agent?

Give the disproportionate reaction of ${\mathrm{H}}_3{\mathrm{PO}}_3$.

What happens when ${\mathrm{H}}_3{\mathrm{PO}}_3$ is heated?