CBSE Class 10 Answered
Sulphur dioxide is covalent compound then how it can form ions when dissolved in water?
Asked by govtsecschoolnayaganv051 | 27 Feb, 2018, 10:49: PM
Expert Answer
Don't get confused in covalent compounds and ionic compounds,
before coming to the answer first, understand bond type in SO2 molecule.
SO2 has covalent bonding but because of electronegativity difference between S and O, the covalent bond becomes polar.
Electronegativity of O is 3.5 and sulphur has 2.6, the difference is 0.9 (3.5 - 2.6 = 0.9).
So, the bond is somewhat polar but still covalent.
Hence because of polar bonding, it dissolved in polar solvents like water and form ions.
Answered by Ramandeep | 28 Feb, 2018, 10:13: AM
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