Chemistry - CHEMICAL BONDING Question with Solution | TestHub
ChemistryCHEMICAL BONDINGHydrogen BondingEasy2 minQB
ChemistryEasysingle choice
Which of the following correctly explains why NH3 boils higher than PH3, and HF boils higher than HCl?
Options:
Answer:
D
Solution:
Hydrogen bonding needs H bonded to a small, highly electronegative atom (N, O or F). NH3 and HF form these bonds between molecules, which raises their boiling points. PH3 and HCl have larger, less electronegative P and Cl, so they show only weak dipole and dispersion forces.
Stream:JEESubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Hydrogen Bonding
⏱ 2mℹ️ Source: QB
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