Which is more reactive `SF_(6)` or `TeF_(6)`? 

Which is more reactive, C_(6)H_(6) or C_(6)D_(6) towards electrophilic substitution?

Why is ICl more reactive than I_(2) ?

Why is ICl more reactive than I2?

Chloroethane, 2-chloropropane and chloroethene are treated with methoxide. Which is more reactive towards Williamson's synthesis ?

Among ethylene and acetylene, which is more reactive towards electrophilic addition reactions? Why?

How do you prove that iron is more reactive than copper?

Among the following which one is more reactive in hydrogenation

Which one of the following is more reactive towards S_N2 reaction?