NEET2019ChemistryChemical Bonding and Molecular StructureActual
The number of sigma σ and pi π bonds in pent- 2 -en- 4 -yne is:
Options
- A10   σ bonds and 3   π bonds
- B8   σ bonds and 5   π bonds
- C11 σ bonds and 2 π bonds
- D13 σ bonds and no π bonds
Correct answer
A. 10   σ bonds and 3   π bonds
Step-by-step solution
Pent - 2 - en - 4 - yne The correct name should be Pent - 3 - en - 1 - yne Number of π bonds = 3 Number of σ bonds = 10