Question

Which of the following statements are correct with respect to the effect of trifluoromethyl group $ (-CF_{3}), $ on an electrophilic aromatic substitution?

• A. The $ CF_{3} $ group will deactivate the ring
• B. The $ CF_3 $ group will activate the ring
• C. The $ CF_3$ group will be ortho, para director
• D. The $ CF_3 $ group will be a meta director

Answer 1

Answer: (A)

Trifluoromethyl group $ (-CF_{3}) $ is $m$-directing group and it will deactivate the ring.