Multiple Choice
What is the molecular geometry of the ClCN (cyanogen chloride) molecule?
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12. Molecular Shapes & Valence Bond Theory
Molecular Geometry
Multiple Choice
Which of the following is the approximate bond angle between adjacent equatorial atoms in a molecule with square pyramidal geometry?
A
109.5^ext{o}
B
120^ext{o}
C
180^ext{o}
D
90^ext{o}
Verified step by step guidance1
Step 1: Understand the molecular geometry. A square pyramidal geometry consists of a central atom bonded to five atoms: four atoms arranged in a square plane (equatorial positions) and one atom above the plane (axial position).
Step 2: Identify the positions of the equatorial atoms. The four equatorial atoms lie in the same plane, arranged at the corners of a square around the central atom.
Step 3: Recall that in a square planar arrangement, the bond angles between adjacent atoms are 90 degrees because the atoms are positioned at right angles to each other.
Step 4: Since the question asks for the bond angle between adjacent equatorial atoms in a square pyramidal molecule, focus on the angles between atoms in the square base, which remain approximately 90 degrees despite the presence of the axial atom.
Step 5: Conclude that the approximate bond angle between adjacent equatorial atoms in square pyramidal geometry is 90 degrees.
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