Which of the following will be planar trigonal ?
Which of the following will be planar trigonal ?
A. `PCl_3`
B. `NH_3`
C. `ClF_3`
D. `AlCl_3`
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Correct Answer - C
In `AlCl_3` molecule central Al-atom is `sp^2` hybridised
`H = 1/2[3 +3-0+0] = 3`.
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