Question:
A molecule has a T-shape. The total number of electron pairs in the valence shell of its central atom is:
A molecule has a T-shape. The total number of electron pairs in the valence shell of its central atom is:
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A T-shaped molecular geometry occurs when the central atom has 5 electron pairs, with two lone pairs causing angular distortion.
Updated On: Jun 5, 2025
- \( 4 \)
- \( 5 \)
- \( 6 \)
- \( 3 \)
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The Correct Option is B
Solution and Explanation
Step 1: Understanding Molecular Geometry
A T-shaped molecule forms when:
- The central atom has 5 electron pairs, but only three are bonding pairs.
- The remaining two are lone pairs, distorting the molecular shape.
Step 2: Example of a T-Shaped Molecule
A common example is ClF\(_3\) (Chlorine trifluoride). The central atom (Cl) has five electron pairs:
- Three bonding pairs (with fluorine atoms).
- Two lone pairs, causing repulsion and leading to the T-shape.
Conclusion
Thus, the correct answer is:
\[
5
\]
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