Which of the following species has tetrahedral geometry?
(i) BH{_{4}}^{-}
(ii) NH{_{2}}^{-}
(iii) CO{_{3}}^{2-}
(iv) H_{3}O^{+}

Answers (1)

The answer is the option (i) BH{_{4}}^{-}

Explanation: 4 bond pairs surround Boron here.

In BH{_{4}}^{-}, there are 4 bond pair and no lone pair.

Its sp3 hybridized, and therefore has tetrahedral geometry     

CO{_{3}}^{-2} is triangular planar.

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