The carbonyl stretching frequency (vC=O) is highest for: · ABC26IN0753
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallics – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Easy
The carbonyl stretching frequency $\left(v_{\mathrm{C}=\mathrm{O}}\right)$ is highest for:
(a)
(b)
(c)
(d)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
Cl withdraws electrons inductively and gives almost no resonance donation, so the C=O of acetyl chloride has the most double-bond character (~1800 cm⁻¹) (c).
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