Neco Model Questions Vol1 2021 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2021 Neco Model Questions Vol1 Chemistry examination.
Four hydrogen halides have the following H-X bond dissociation energies: HF = 567 kJ mol⁻¹, HCl = 432 kJ mol⁻¹, HBr = 366 kJ mol⁻¹, HI = 299 kJ mol⁻¹. Their corresponding alkali‑metal halides have lattice energies: LiF = -1036 kJ mol⁻¹, LiCl = -828 kJ mol⁻¹, LiBr = -734 kJ mol⁻¹, LiI = -656 kJ mol⁻¹. Considering both the H-X bond strength and the polarity of the H-X bond (which increases with the electronegativity difference between H and X), which hydride would be the most suitable as a non‑aqueous acid in organic synthesis? Justify your choice.
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About This Question
This is Neco Model Questions Vol1 2021 Chemistry Question 15. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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