UPSC Combined Geo-Scientist, Mains · 2026 · Mains Paper I
Q2(a). SrCl₂ or CdCl₂: fluorite structure
Question
Which one, SrCl₂ or CdCl₂, follows fluorite structure? Explain with suitable pictorial diagram. [Ionic radii (in pm): Sr²⁺—113; Cd²⁺—97; Cl⁻—181]
Model answer
The free solution for 2026 answers the questions picked in its time plan. Question 2 is answered in full in the Book Edition of the 2026 solutions of Geo-Scientist Chemistry Paper I.
Coversradius ratio and structureSrCl₂ or CdCl₂fluorite structure
All parts of Question 2
- 2(a) SrCl₂ or CdCl₂: fluorite structure10 marks
- 2(b) Assignment of the spectrum of [Cr(NCS)₆]³⁻10 marks
- 2(c) Magnetism and isomers of M(PR₃)₂Cl₂ (M = Ni, Pd)10 marks