---
title: "Propyne, \\(\\text{CH}_3\\text{C}\\equiv\\text{CH}\\), is an alkyne used as a specialty fuel and chemical building block. The structural formula of propyne is shown below. Which of the following correctly identifies the hybridization of the triply bonded carbon atoms and the total number of \\(\\pi\\) bonds in one molecule of propyne?"
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url: "https://nerd-notes.com/ubq/119228/"
date_modified: "2026-08-19T12:39:28+00:00"
---

# Propyne, \(\text{CH}_3\text{C}\equiv\text{CH}\), is an alkyne used as a specialty fuel and chemical building block. The structural formula of propyne is shown below. Which of the following correctly identifies the hybridization of the triply bonded carbon atoms and the total number of \(\pi\) bonds in one molecule of propyne?

Propyne, \(\text{CH}_3\text{C}\equiv\text{CH}\), is an alkyne used as a specialty fuel and chemical building block. The structural formula of propyne is shown below. Which of the following correctly identifies the hybridization of the triply bonded carbon atoms and the total number of \(\pi\) bonds in one molecule of propyne?

![A Lewis structural formula of propyne, CH3CCH, drawn horizontally in grayscale. On the left, a carbon atom is single-bonded to three hydrogen atoms (one above, one below, one to the left) and single-bonded to a second carbon atom on its right. The second carbon atom is triple-bonded to a third carbon atom on its right. The third carbon atom is single-bonded to a single hydrogen atom on its far right. All single bonds are drawn as single straight lines, and the triple bond is drawn as three parallel horizontal lines. No lone pairs are present on any atom. No formal charges or annotations appear.](https://nerd-notes.com/wp-content/uploads/ubq-frq-generated/stem-fig-1-1787143167-rhzrUk.jpg)

- **A.** \(sp^2\) hybridization and 1 \(\pi\) bond
- **B.** \(sp^2\) hybridization and 2 \(\pi\) bonds
- **C.** \(sp\) hybridization and 2 \(\pi\) bonds
- **D.** \(sp\) hybridization and 3 \(\pi\) bonds

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