Chemistry - Complete P-block Question with Solution | TestHub
ChemistryComplete P-blockp-Block 15,16Hard2 minQB
ChemistryHardsingle choice
Match List-I (species) with List-II (characteristics) and select the correct answer using the code given below the lists :
List-I | List-II |
|---|---|
(P) N₃⁻ | (1) Aromatic 6 π-electron ring |
(Q) cyclo-N₅⁻ | (2) Linear geometry |
(R) cyclo-P₅⁻ | (3) Contains sp-hybridised nitrogen |
(S) P₄ | (4) Tetrahedral cage with 60° bond angles |
| (5) Open-chain species |
The correct option is :
Options:
Answer:
A
Solution:
N₃⁻ (16 valence e⁻, isoelectronic with CO₂) is a linear, open-chain ion whose CENTRAL nitrogen is sp-hybridised (the terminal N atoms are sp²) → 2,3,5. cyclo-N₅⁻ (pentazolate) and cyclo-P₅⁻ (pentaphospholide) are planar 6 π-electron aromatic rings, isoelectronic with C₅H₅⁻ → 1 each. P₄ is a tetrahedral cage with 60° P-P-P angles → 4.
Stream:JEESubject:ChemistryTopic:Complete P-blockSubtopic:p-Block 15,16
⏱ 2mℹ️ Source: QB
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