Chemistry - Complete Pblock- Question with Solution | TestHub
ChemistryComplete Pblock-p-Block 17,18Hard2 minQB
ChemistryHardinteger
Xenon forms three binary fluorides by direct combination of the elements under controlled conditions : Xe + F₂ (Xe in excess, 673 K) → (A) ; Xe + F₂ (1 : 5, 673 K, 6-7 bar) → (B) ; Xe + F₂ (1 : 20, 573 K, 60-70 bar) → (C). Compound (B) on complete hydrolysis gives a highly explosive oxide (D). The number of pπ-dπ bonds present in (D) is :
Answer:
3
Solution:
B = XeF₄ (Xe : F₂ = 1 : 5, 673 K, 6-7 bar); 3XeF₄ + 6H₂O → 2Xe + XeO₃ + 12HF + (3/2)O₂, so D = XeO₃. Each Xe=O bond is, in the standard textbook description, a pπ-dπ bond (O 2p overlap with vacant Xe 5d), so D contains 3 pπ-dπ bonds.
Stream:JEESubject:ChemistryTopic:Complete Pblock-Subtopic:p-Block 17,18
⏱ 2mℹ️ Source: QB
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