Discussion
The molecules P4 and CH4 exhibit the same :
Answer: B
P4 and CH4 share the same Geometry: both are tetrahedral.
In white phosphorus the four P atoms sit at the corners of a tetrahedron, each bonded to the other three (P-P-P angles of 60°). In methane the four H atoms sit at the corners of a tetrahedron around carbon (H-C-H angles of 109.5°). The arrangements differ in detail, but both molecules have tetrahedral shape.
They do not share the other properties. White phosphorus is a pale yellow waxy solid at 300 K with a boiling point near 280 °C, while methane is a colourless gas boiling at about -162 °C.
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