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Among the following species which two have trigonal pyramidal shape?
(I) $\mathrm{NI}_3$
(II) $\mathrm{I}_3^{-}$
(III) $\mathrm{SO}_3^{2-}$
(IV) $\mathrm{NO}_3^{-}$
Options:
(I) $\mathrm{NI}_3$
(II) $\mathrm{I}_3^{-}$
(III) $\mathrm{SO}_3^{2-}$
(IV) $\mathrm{NO}_3^{-}$
Solution:
1179 Upvotes
Verified Answer
The correct answer is:
I and III
I and III
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