The structure of PCl5 in the solid state is:
p-Block Elements (Class 12) · Class 12 · JEE Main Previous Year Question
The structure of in the solid state is:
- a✓
tetrahedral and octahedral
- b
square planar and octahedral
- c
square pyramidal
- d
trigonal bipyramidal
tetrahedral and octahedral
Strategy: Relate intermolecular forces and molecular size to the boiling points of noble gases.
Step 1: Dispersion Forces Noble gases consist of single atoms held only by weak London dispersion forces. As atomic size and number of electrons increase from to , the polarizability increases.
Step 2: Boiling Point Trend Stronger dispersion forces result in higher boiling points. Thus, boiling point increases down the group. Matching this trend with the provided values or order gives the answer.
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