AP EAMCET · Chemistry · Chemical Bonding and Molecular Structure

The types of hybrid orbitals of nitrogen in $\mathrm{NO}_2^{+}, \mathrm{NO}_3^{-}$and $\mathrm{NH}_4^{+}$respectively are

A $s p, s p^3, s p^2$
B $s p, s p^2, s p^3$
C $s p^2, s p, s p^3$
D $s p^2, s p^3, s p$

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Answer & Solution

Correct Answer

(B) $s p, s p^2, s p^3$

Step-by-step Solution

Detailed explanation

\begin{aligned} & \mathrm{NO}_2^{+} \Rightarrow \mathrm{O}=\underset{s p}{\mathrm{~N}} \longrightarrow \mathrm{O} \\ H & =\frac{1}{2}(V+M-C+A) \\ H & =\frac{1}{2}(5+0-1+0)=2(s p) \\ H & =\text { number of hybrid orbitals } \\ V & =\text { number of valence electrons } \\ M &…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Which one of the following statements is not correct?

AP EAMCET 2019 Easy

Match List I with List II

	List-I (defect)		List-II (Examples)
(A)	Frenkel defects	(1)	$FeO$
(B)	Schottkey defects	(2)	$NaCl$
(C)	Vacancy defects	(3)	$AgCl$
(D)	Metal deficiency defects	(4)	Crystals with vacant lattice sites.

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The types of hybrid orbitals of nitrogen in \(\mathrm{NO}_2^{+}, \mathrm{NO}_3^{-}\)and \(\mathrm{NH}_4^{+}\)respectively are

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