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The p-Block Elements

Short Answer Type

621. Complete the following chemical reaction equation:
XeF₄ + H₂O → __________

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622. Draw structures of the following species:
(i) H₂,S₂,O₇ (ii)NO₃–.

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623. Assign a reason for the following statement:
Phosphorus (P₄) is more reactive than nitrogen (N₂).

Nitrogen molecule is a diatomic and the two nitrogen atoms are linked by a triple bond (N≡ N) forming (pi-pi) bond. As the bond dissociation energy is very high (946 kj mol^–1), it is not possible to cleave the triple bond so easily. Therefore, phosphorus (P₄) is more reactive than nitrogen (N₂).

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