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Lewis Dot Structures With Resonance

This worksheet covers Lewis Dot Structures With Resonance, which is part of the Drawing Lewis Dot Structures module in the Chemistry course. Practice problems are designed to strengthen key concepts and build confidence.

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Related Lessons:

Simple Lewis Dot Structures

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Lewis Dot Structures With Resonance

Drawing Lewis Dot Structures • Chemistry

Set 4 — Mastery

Which of the following molecules exhibits resonance?

$CO_{2}$

$O_{3}$

$H_{2}O$

$CH_{4}$

How many resonance structures can be drawn for the nitrate ion, $NO_{3}^{-}$ ?

Which of the following molecules has a resonance hybrid that is more stable than any individual resonance structure?

$C_{6}H_{6}$

$SO_{2}$

$CH_{3}COO^{-}$

$N_{2}O$

What is the hybridization of the central atom in the molecule $CO_{2}$ ?

$sp$

$sp^{2}$

$sp^{3}$

$d^{2}sp^{3}$

Which resonance structure of $NO_{3}^{-}$ contributes most to the resonance hybrid?

Structure with double bond to oxygen

Structure with formal charge on nitrogen

Structure with all single bonds

Structure with positive charge on oxygen

In which of the following does the resonance hybrid depict a significant contribution from all structures?

$C_{2}H_{4}$

$C_{3}H_{6}$

$C_{6}H_{6}$

$NH_{3}$

Which of the following species does NOT exhibit resonance?

$HCO^{-}$

$SO_{3}^{2-}$

$ClO_{3}^{-}$

$CH_{4}$

What is the primary reason for the existence of resonance in molecules?

Presence of lone pairs

Delocalization of electrons

Multiple bond types

Electronegativity differences

Which resonance structure is considered the least stable for $SO_{2}$ ?

Structure with positive charge on sulfur

Structure with double bond to one oxygen

Structure with formal charges on both oxygens

Structure with single bonds only

10.

Which of the following correctly describes the resonance hybrid of $C_{6}H_{6}$ ?

Has alternating single and double bonds

Has only single bonds

Is a single structure without resonance

Has all bonds equal in length

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