MCQOPTIONS
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| 1. |
The number of sigma and pi bonds in 1-butene-3-yne are [IIT 1989] |
| A. | 5 sigma and 5 pi |
| B. | 7 sigma and 3 pi |
| C. | 8 sigma and 2 pi |
| D. | 6 sigma and 4 pi |
| Answer» C. 8 sigma and 2 pi | |