MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is ortho-para directing group? |
| A. | –NHCOCH<sub>3</sub> |
| B. | –NO<sub>2</sub> |
| C. | –CN |
| D. | –CHO |
| Answer» B. ‚Äö√Ñ√∂‚àö√ë‚àö¬®NO<sub>2</sub> | |