1. Tardigrade
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  3. Chemistry
  4. Which of the following will be planar trigonal ?

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Q. Which of the following will be planar trigonal ?

Chemical Bonding and Molecular Structure

Solution:

In $AICI_3$ molecule, central Al-atom is $sp^2$ hybridised
H = $\frac{1}{2}$ [ 3 + 3 - 0 + 0 ] = 3 .