List I (Molecule) |
List II (Number and types of bond/s between two carbon atoms) |
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A. | ethane | I. | \(\mathrm{one ~\sigma-bond~ and~ two~ \pi-bonds}\) |
B. | ethene | II. | \(\text { two } \pi \text {-bonds }\) |
C. | carbon molecule, \(\mathrm{C} _2\) |
III. | \(\text { one } \sigma \text {-bond }\) |
D. | ethyne | IV. | \(\mathrm{one ~\sigma-bond ~and ~one~ \pi-bond}\) |
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