Q57 · CSIR NET Chemistry, June 2011
Paper: CSIR NET June 2011 · Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: MO Theory Diatomics · Marks: 2 · Difficulty: Easy
According to VSEPR theory, the molecule/ion having ideal tetrahedral shape is
(a)$\mathrm{SF}_{4}$
(b)$\mathrm{SO_4^{2-}}$
(c)$\mathrm{S}_{2} \mathrm{Cl}_{2}$
(d)$\mathrm{SO}_{2} \mathrm{Cl}_{2}$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
SO₄²⁻ has four identical substituents and no lone pair: a regular tetrahedron. SF₄ is see-saw, S₂Cl₂ is gauche, SO₂Cl₂ a distorted tetrahedron.
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