Question

If true enter 1, else enter 0.
When ethene reacts with $H_2$, ethane is formed. The $\pi$ bond of C=C is affected. Thus, $\pi$ bond is more reactive than $\sigma$-bond.

Answer 1

As pi-bonds are weaker in strength than sigma bonds, the pi-bond in an alkene breaks easily and they are more reactive than sigma bonds.