Which is the correct reaction coordinate diagram for the following solvolysis reaction?

Which of the following phrases are not correctly associated with $S_N1$ reaction?
$(1)$ Rearrangement is possible
$(2)$ Rate is affected by polarity of solvent
$(3)$ The strength of the nucleophile is important in determining rate
$(4)$ The reactivity series is tertiary $>$ secondary $>$ primary
$(5)$ Proceeds with complete inversion of configuration

$1-$chlorobutane on treatment with alcoholic potash forms

The formation of alkene from alkyl halide is an example of

What is formed when toluene reacts with chlorine in the presence of light?

The rate of the following reaction is influenced by the hyperconjugation of group $R$. The rate of reaction will be maximum when $R$ is: