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JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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Analyzing +4 | -1
Among the following species, identify the isostructural pairs

NF3,NO3βˆ’,BF3,H3O+,HN3\mathrm{NF}_3, \mathrm{NO}_3^{-}, \mathrm{BF}_3, \mathrm{H}_3 \mathrm{O}^{+}, \mathrm{HN}_3
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Correct option: C
[NF3,H3O+]\left[\mathrm{NF}_3, \mathrm{H}_3 \mathrm{O}^{+}\right]and [NO3βˆ’,BF3]\left[\mathrm{NO}_3^{-}, \mathrm{BF}_3\right]
The correct answer is C because NF3 and H3O+ are both pyramidal (sp3 hybridization), while NO3- and BF3 are trigonal planar (sp2 hybridization).

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