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Checking Bond Orders in Equal-Atom Mixtures 4 questions
Checking Bond Orders in Equal-Atom Mixtures
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A display uses three two-carbon models. A molecule with a single carbon–carbon bond has six H atoms, one with a double bond has four, and one with a triple bond has two. In the model a double bond takes one H2 molecule to become single. A triple bond takes two H2 molecules. A single bond takes none.
| Mixture | Number of single-bond molecules | Number of double-bond molecules | Number of triple-bond molecules |
|---|---|---|---|
| P | 1 | 0 | 1 |
| Q | 0 | 2 | 0 |
Question 1
Which comparison correctly describes the starting mixtures?
- P has more carbon atoms.
- Q has more carbon atoms.
- Both contain four carbon atoms and eight hydrogen atoms.
- Both contain two molecules with double bonds.
Question 2
Calculate the total number of H₂ molecules each mixture would take up in the model.
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An independent detector responds only to a carbon–carbon triple bond. An unknown is either P or Q. Its hydrogen uptake is two H2 molecules, and the independent detector gives a signal.
Question 3
Identify the unknown and explain what the independent detector resolves.
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Question 4
Draw the molecule that produces the independent detector signal. Show its carbon and hydrogen connections.
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