A molecule with the formula AX4Y 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. Elem

Question

A molecule with the formula AX4Y 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) Pentagonal planar
(B) Square pyramidal
(C) Trigonal bipyramidal
(D) Octahedral

Prashant Kotian · Accepted Answer

Correct answer: B. A  Xe; X  F; Y  O Xe  F F F F O Shape – Square pyramidal.

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