The number of sigma (σ) and pi (π) pent-2-en-4-yne is
8σ bonds and 5π bonds
11σ bonds and 2π bonds
13σ bonds and no π bonds
10σ bonds and 3π bonds
An alkene "A" on reaction with O3 and Zn–H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is:
H3C—CH2—CH(CH2Cl)—CH3
B.