Question

types of bond in ph4br
(a) only covalent bond
(b) electrovalent bond
(c) only covalent and electrovalent bonh
(d) covalent , electrovalent and coordinate bond​

Answer 1

Ph4Br contains electrovalent bond, coordinate and covalent bond (d).

• PH4Br dissociates into phosphonium ions PH4+ and Br- bromine ions.
• The balanced reaction is: 4 PH3 + Br2 → P2H4 + 2 PH4Br
• Electrovalent bonds are formed from attraction between two oppositely charged ions in a chemical compound as between PH4+ and Br-. They are also known as Ionic bonds.
• Covalent bond is a chemical bond that consists of sharing of electron pairs between two atoms in a compound as in P and H.
• It forms coordinate bonds between Br and H.