Which of the following is ortho-para directing group?
A. –NHCOCH3
B. –NO2
C. –CN
D. –CHO
Answer:A
Which of the following is ortho-para directing group?
A. –NHCOCH3 B. –NO2 C. –CN D. –CHO
Explanation: NHCOCH3 is ortho-para directing group. NO, CN and CHO are metadirecting groups.