Advertisements
Advertisements
प्रश्न
Phosphorus forms a number of oxoacids. Out of these oxoacids phosphinic acid has strong reducing property. Write its structure and also write a reaction showing its reducing behaviour.
Advertisements
उत्तर
Structure of phosphinic acid (Hypophosphorous acid) is as follows:
\[\begin{array}{cc}
\ce{O}\\
\phantom{}||\\
\underset{/\phantom{....}|\phantom{....}\backslash}{\ce{P}}\\
\phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{..}\ce{OH}\phantom{.}
\end{array}\]
Reducing behaviour of phosphinic acid is observable in the reaction with silver nitrate given below:
\[\ce{4AgNO3 + 2H2O + H3PO2 -> 4Ag + 4HNO3 + H3PO4}\]
APPEARS IN
संबंधित प्रश्न
Give reasons for the following : H3PO2 is a stronger reducing agent than H3PO3.
Give the disproportionation reaction of H3PO3
What is the oxidation state of phosphorus in H3PO3?
What is the oxidation state of phosphorus in the following:
Na3PO4
Write balanced chemical equations involved in the following reactions:
Calcium phosphide is dissolved in water.
Which of the following acids forms three series of salts?
Which among the oxoacids of phosphorus contain two P – OH bonds, one P = O and one P – H bond
Which of the following contain P – O – P bond?
The oxidation number of phosphorus in Ba (H2PO3)2 is
Which one of the following is a dibasic acid?
The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is ______.
Match List-I with List-II:
| List-I | List-II |
| name of oxo acid | Oxidation state of 'P' |
| (a) Hypophosphorous acid | (i) +5 |
| (b) Orthophosphoric acid | (ii) +4 |
| (c) Hypophosphoric acid | (iii) +3 |
| (d) Orthophosphorous acid | (iv) +2 |
| (v) +1 |
Choose the correct answer from the options given below:
What is the basicity of \[\ce{H3PO4}\]?
What is the basicity of H3PO4?
What is the basicity of \[\ce{H3PO4}\]?
What is the basicity of \[\ce{H3PO4}\]?
What is the basicity of H3PO4?
What is the basicity of \[\ce{H3PO4}\]?
What is the basicity of \[\ce{H3PO4}\]?
