What is the product of the following reaction?
$C_6H_5CH_2Br + KF \xrightarrow{DMF} ?$

Given below are two statements:
Statement $(I)$: Benzyl chloride reacts faster in $S_N1$ mechanism than ethyl chloride.
Statement $(II)$: Ethyl carbocation intermediate is less stabilized by hyperconjugation than benzyl carbocation by resonance.
In the light of the above statements, choose the correct answer from the options given below:

Which of the following compounds will not undergo Friedel-Crafts reaction with benzene?

What are nucleophiles and nucleophilic substitution reactions? Provide a basic overview of the nucleophilic substitution reaction of haloalkanes.

Dehydrohalogenation in monohaloalkanes produces

What is obtained by hydrolysis in the presence of acetone?