Statement 1: The order of reactivity of carbonium ions is  10  >  20 >  30Statement 2: Carbon atom in carbonium ions is in sp3 state of hybridization.

The order of reactivity of carbonium ions is 10  >  20 >  30.  Carbon atom in carbonium ion is in sp2 state of hybridization. The three hybridized orbitals lie in the same plane and are involved in the formation of three σ bonds with three atoms or groups while the unhybridized p-orbital remains vacant.