Among the compound given in the option (a) to (d), the one that exhibits a sharp band at around 3300 cm⁻¹ in… · ABC26OR0729
Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Organic Spectroscopy – General · Exam: GATE 2000-2022 · Marks: 2 · Difficulty: Medium
Among the compound given in the option (a) to (d), the one that exhibits a sharp band at around $3300 \mathrm{cm}^{-1}$ in the IR spectrum is:
(a)1,2–butadiene
(b)1,3–butadiene
(c)1–butyne
(d)2–butyne
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
A sharp ≡C–H stretch near 3300 cm⁻¹ requires a terminal alkyne: 1-butyne (c).
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