Q. Which of the following is not isostructural with SiCl₄ ?
A) SCl₄
B) SO₄²⁻
C) PO₄³⁻
D) NH₄⁺
Explanation
[Solution from source] SiCl₄, SO₄²⁻, PO₄³⁻ and NH₄⁺ all have four bond pairs and no lone pair on the central atom, so they are tetrahedral. SCl₄ has four bond pairs and one lone pair on S (sp³d), giving a see-saw shape, so it is not isostructural. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.