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JEE Advanced2026Chemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Correct statement(s) about the compounds P , Q and R is(are)

Options

  1. AP has two lone pairs of electrons on the central atom.
  2. BQ has a perfect octahedral geometry.
  3. CQ can act as a fluorinating agent.
  4. DThe molecular structure of R is trigonal pyramidal.

Correct answer

A. P has two lone pairs of electrons on the central atom.

Step-by-step solution

From the given reaction conditions: Xe(g) + 2 F ₂ (g) [ 1 : 5 ratio ] 873 K, 7 bar XeF ₄ Thus, P is XeF ₄ . XeF ₄ + O ₂ F ₂ 143 K XeF ₆ + O ₂ Thus, Q is XeF ₆ . XeF ₆ + 3 H ₂ O complete hydrolysis XeO ₃ + 6 HF Thus, R is XeO ₃ . Evaluating the given options: (A) P ( XeF ₄ ) has 8 valence electrons on the central Xe atom. It forms 4 single bonds with F, leaving 4 electrons which form 2 lone pairs. This statement is correct. (B) Q ( XeF ₆ ) has 6 bond pairs and 1 lone pair on the central Xe atom. Its geometry is dist

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