Chapter 127 of 2363 min read
Group 15 and 16: nitrogen, oxygen families
Why this is asked: N₂'s triple bond makes it exceptionally unreactive, while P4 in the same group is so reactive it's stored underwater — a contrast NEET uses to test whether "same group, similar reactivity" has been over-applied. Catenation is actually stronger for sulfur than oxygen despite O sitting above S, because lone-pair repulsion between the small oxygen atoms weakens the O–O single bond.
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- •Given below are two statements: Statement I: Like nitrogen, which can form ammonia, arsenic can form arsine. Statement II: Antimony cannot form antimony pentoxide. In the light of the above statements, choose the most appropriate answer from the options given below:
- •Among Group 16 elements, which one does not show the –2 oxidation state?
- •Given below are two statements: Statement I: The boiling points of the hydrides of Group 16 elements follow the order . Statement II: On the basis of molecular mass, is expected to have a lower boiling point than the other members of the group, but due to the presence of extensive H-bonding in , it has a higher boiling point. In the light of the above statements, choose the correct answer from the options given below:
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