Which of the following halides undergo `E_(2)` elimination?

Which of the following alkyl halides undergoes elimination reaction readily?

Which of the following most readily undergoes E_(2) elimination with a strong base?

Which of the following most readily undergoes E_(2) elimination with a strong base?

Which of the following cannot undergo E_(2) reaction ?

Which of the following reactions will undergo an elimination reaction and an alkene will be formed in the product ?

Which of the following alkyl halides undergoes S_N1 reaction the fastest?

Which of the following will undergo fastest elimination with alcoholic KOH ?