| 1. | H2O | 2. | SO2 |
| 3. | NO2 | 4. | CO2 |
The number of sigma () and pi () bonds in pent-2-en-4-yne is:
1. 13 bonds and no bond
2. 10 bonds and 3 bonds
3. 8 bonds and 5 bonds
4. 11 bonds and 2 bonds
The relation between hydrogen bond and the van der Waals forces is:
| 1. | Both the bonds have equal strength. |
| 2. | Hydrogen bonds are weaker than van der Waals forces. |
| 3. | Hydrogen bonds are stronger than van der Waals forces. |
| 4. | None of the above |