Chemistry·MCQ Practice

Lewis Structures — MCQ Practice

NEET UG

Version 1Updated 21 Mar 2026

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Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 6 questions available.

Q1medium

Which of the following molecules contains an atom that violates the octet rule by having an expanded octet?

Q2medium

What is the formal charge on the central nitrogen atom in the nitrate ion, $NO_3^-$ ?

Q3medium

How many lone pairs of electrons are present on the central atom in $XeF_4$ ?

Q4medium

Which of the following species exhibits resonance structures?

Q5easy

What is the total number of valence electrons in the $PO_4^{3-}$ ion?

Q6easy

In the most stable Lewis structure of $CO_2$ , what is the bond order between carbon and each oxygen atom?