Chemistry - Complete P-block Question with Solution | TestHub
ChemistryComplete P-blockp-Block 15,16Medium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
Fifteen group elements form hydrides of type AH3 . The hydrides have a lone pair of electrons. The hydrides are covalent and have low boiling points. Their boiling points depends on their ability to form hydrogen bond and their molecular size which decide the intermolecular forces in the hydrides.
The boiling points of the hydrides of V-group elements are in the order:
Options:
Answer:
C
Solution:
hydrides (Nitrogen family) show boiling point depends on H-bonding and molecular size. NH₃ has highest due to hydrogen bonding, while down the group size increases so SbH₃ becomes highest overall.
Correct order: SbH₃ > NH₃ > AsH₃ > PH₃ → Option (C)
Stream:JEESubject:ChemistryTopic:Complete P-blockSubtopic:p-Block 15,16
⏱ 2mℹ️ Source: QB
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