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Question

The oxyacid of sulphur that contains a lone pair of electrons on sulphur is:
  1. peroxodisulphuric acid
  2. pyrosulphuric acid
  3. sulphurous acid
  4. sulphuric acid

A
sulphurous acid
B
peroxodisulphuric acid
C
sulphuric acid
D
pyrosulphuric acid
Solution
Verified by Toppr

The oxyacid of sulphur that contains a lone pair of electrons on sulfur is sulfurous acid H2SO3 in wich only 4 of ts valence electrons are involved in bonding remaining 2 electrons are remained as a lone pair sulfur(Sulr has six valence electrons).

Hence option A is correct.


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