Igcse Model Questions Vol1 2022 Chemistry Question 24

Practice objective / multiple choice question 24 from the 2022 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2022 Chemistry Objective / Multiple Choice Medium Difficulty
Question 24 IGCSE_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • objective

Carbon dioxide (CO₂) contains two C=O double bonds with a bond length of 116 pm. In the carbonate ion (CO₃²⁻) each C-O bond is equivalent due to resonance. Predict whether the C-O bond length in CO₃²⁻ is longer, shorter, or the same as in CO₂, and give a brief justification based on bond order.

Answer Options

A. the same as in CO₂
B. shorter than in CO₂
Correct Answer C. longer than in CO₂
D. shorter than in CO₂ (due to resonance)
Correct Answer
C
Correct Option:
longer than in CO₂

About This Question

This is Igcse Model Questions Vol1 2022 Chemistry Question 24. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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