Why is ammonia a stronger base than phosphine?
p-Block Elements
Original Khojo Papers practice question — not from a past board paper.
They have completely filled valence shells and very high ionisation enthalpies, so they have almost no tendency to gain, lose or share electrons. Xenon forms compounds most readily, because it is the largest of the common noble gases and its ionisation enthalpy is therefore the lowest.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
XeF2, XeF4 and XeF6 are all known.
From the same topic and chapter, at a similar level.
Why is ammonia a stronger base than phosphine?
p-Block Elements
Why is sulphur hexafluoride known but not sulphur hexachloride?
p-Block Elements
Explain why nitrogen does not form pentahalides while phosphorus does.
p-Block Elements
Why is the boiling point of hydrogen fluoride higher than that of hydrogen chloride?
p-Block Elements
What is the van't Hoff factor, and what values does it take for sodium chloride and for acetic acid in benzene?
Solutions
Distinguish between Schottky and Frenkel defects and state the effect of each on density.
Solid State