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JEE Main 20252 AprilMorning Shift
Exam
JEE Main
Year
2025
Date
2 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

JEE Main 2025 · 2 April · Morning Shift · Chemistry · Chemical Bonding and Molecular Structure

A molecule with the formula (AX_4 Y) has all it's elements from...

A molecule with the formula (\mathrm{AX}_4 \mathrm{Y}) has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among A, X and Y. Elements X and Y have first and second highest electronegativity values respectively among all the known elements. The shape of the molecule is :A molecule with the formula (AX_4 Y) has all it's elements from p-block. Element A is rarest, monoatomic,A molecule with the formula (AX_4 Y) has all it's elements from p-block. Element A is rarest, monoatomic,

Options

  1. ASquare pyramidal
  2. BOctahedral
  3. CPentagonal planar
  4. DTrigonal bipyramidal

Correct answer

A. Square pyramidal

Step-by-step solution

Given A is rarest, monoatomic, non-radioactive p-block element and form (\mathrm{AX}}_{4}\mathrm{Y}) type of molecule.<br />(\therefore) It is concluded that it is Xe<br />It is given the electronegativity of A is less than X & Y<br />It is given the electronegativity of (\mathrm{X} & ~\&~\mathrm{Y})ishighestandsecondhighestrespectivelyamongallelement.<br/>(∴) is highest and second highest respectively among all element.<br />(\therefore\mathrm{X} & ~\&~\mathrm{Y})are() are (\mathrm{F} & ~\&~\mathrm{O})<br/>(∴)Compoundisconsideras(XeOF)<br />(\therefore) Compound is consider as (\mathrm{XeOF}}_{4}) with square pyramidal shape.
A molecule with the formula (AX_4 Y) has all it's elements from p-block. Element A is rarest, monoatomic,
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