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AIIMS 2017
Exam
AIIMS
Year
2017
Subject
Chemistry
Chapter
Structure of Atom

AIIMS 2017 · Chemistry · Structure of Atom

The AsF_5 molecule is trigonal bipyramidal. The hybrid orbitals...

The AsF5\mathrm{AsF}_5 molecule is trigonal bipyramidal. The hybrid orbitals used by the As atoms for bonding are

Options

  1. Adx2−y2,dz2,s,px,pyd_{x^2-y^2}, d_{z^2}, s, p_x, p_y
  2. Bdxy,s,px,py,pzd_{x y}, s, p_x, p_y, p_z
  3. Cdx2−y2,s,px,pyd_{x^2-y^2}, s, p_x, p_y
  4. Ds,px,py,pz,dz2s, p_x, p_y, p_z, d_z^2

Correct answer

D. s,px,py,pz,dz2s, p_x, p_y, p_z, d_z^2

Step-by-step solution

AsF5A_{s F_5} has sp3ds p^3 d hybridisation. In sp3ds p^3 d hybridisation, the dz2d_{z^2} orbital is used along with the ' ss ' and three ' pp ' orbitals to form three equatorial bonds and two equally strong axial bonds for a trigonal bipyramid.
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