Ah, what a lovely question! The molecular shape of H2SO3, also known as sulfurous acid, is bent or angular. This shape occurs due to the presence of two lone pairs of electrons on the sulfur atom, causing the molecule to bend slightly. Just like how a gentle breeze can sway a tree, the electrons influence the shape of the molecule in a delicate and harmonious way.
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The shape around S is trigonal pyramidal. Direction of deviation is less than ideal. The shape around O-H is bent (V-shaped). Direction of deviation less than ideal.
As is H2SO3 there are 3 bonded electron pairs and one free electron pair .. according to VSEPR it falls in AB3E category .. so it has Trigonal Pyramidal shape ...