Hybridisation of P in H3PO3 and H3PO2 is respectively?
Answers
Answer:
For finding out the basicity of Acids containing phosphorus ( here, H3PO2, H3PO3 and H3PO4), we must know their structures.
Top answer · 1 vote
Answer:
P is sp3 hybridised in all.
Explanation:
The basicity of a molecule is a measure of its ability to accept a proton (H+) to form a stable product.
H3PO3 – Phosphorous acid
- Phosphorous acid which is also called phosphonic acid is a colorless oxyacid of phosphorus.
- Phosphoric acid, also known as orthophosphoric acid, (H3PO4), the most essential phosphorus oxygen acid, was used to produce fertilizer phosphate salts. It is also used in dental cement, albumin derivatives preparation, and in the sugar and textile industries.
Basicity
In phosphorous acid (H3PO3) we observe that two types of bonds are present.
- P-OH bonds
- P-H bond
The two hydrogen atoms are directly bonded to the electronegative atom oxygen.
H3PO2 – Hypophosphorous acid
- A phosphorus oxoacid consists of single pentavalent phosphorus covalently bound through single bonds to two hydrogens and a hydroxy group and a double bond to an oxygen.
- Hypophosphorous acid (HPA), or phosphinic acid, is a phosphorus oxyacid and a powerful reducing agent with the molecular formula H3PO2.
- It is a colourless low-melting compound, which is soluble in water, dioxane, and alcohol.
Basicity of hypophosphorous acid
In hypophosphorous acid, we observe that two types of bonds are present.
- P-OH bonds
- P-H bond
Only one hydrogen atom is directly bonded to the electronegative atom oxygen.
Hence, the basicity of Hypophosphorous acid is 2.
P is sp3 hybridized in all. Therefore, all are tetrahedral. in all the oxyacids of phosphorus, each phosphorus atom is sp3 hybridized. This results in tetrahedral geometry around phosphorus atoms.
