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Shape and Geometry Using VSEPR

Which of the ...

Question

Which of the following is not a pyramidal species?

N H_{3}

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H_{3}^{+} O

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P H_{3}

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N H_{4}^{+}

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Solution

The correct option is D $N H_{4}^{+}$
All molecules have geometry tetrahedral but due to the presence of one lone pair in $N H_{3}, H_{3} O^{+}, P H_{3}$ they form a pyramidal structure while $N H_{4}^{+}$ forms tetrahedral structure.

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Similar questions

{N H}_{4}^{+} + H_{2} O ⇋ {N H}_{3} + H_{3} O^{+}

{N H}_{4}^{+} + H_{2} O ⇋ {N H}_{3} + H_{3} O^{+}

P H_{3} + \oplus N H_{4} ⟶ \oplus P H_{4} + N H_{3}

N H_{3} + P {\oplus H}_{4} ⟶ N {\oplus H}_{4} + P H_{3}

(C H_{3})_{3} P + \oplus N H_{4} ⟶ (C H_{3})_{3} \oplus P H + N H_{3}

(C H_{3})_{3} N + P H_{4}^{\oplus} ⟶ (C H_{3})_{3} \oplus N H + P H_{3}

C {\oplus H}_{3}

\oplus N H_{4}

H_{3} O^{\oplus}

{C O}_{2}

{S O}_{3}

C {⊖ H}_{3}

1. S b H_{3} > N H_{3} > A s H_{3} > P H_{3}

2. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

3. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

4. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

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