The presence of the chlorine atom on the benzene ring makes the second substituent enter at which position?

The ortho/para directing group among the following is

Which of the following compounds will not undergo Friedel-Craft's reaction easily?

The lower reactivity of the chlorine atom in $CH_2 = CH - Cl$ is due to:

The correct order of reactivity of the following haloarenes towards nucleophilic substitution with aqueous $NaOH$ is:
Choose the correct answer from the options given below:

What is the product $X$ in the following Wurtz-Fittig reaction?