Chemistry · PYQ NEET UG 2016(2)

The CORRECT increasing order of trans-effect of the following species is

1. A
   \( \text{CN}^- > \text{Br}^- > \text{C}_6\text{H}_5^- > \text{NH}_3 \)
2. B
   \( \text{NH}_3 > \text{CN}^- > \text{Br}^- > \text{C}_6\text{H}_5^- \)
3. C
   \( \text{CN}^- > \text{C}_6\text{H}_5^- > \text{Br}^- > \text{NH}_3 \)
4. D
   \( \text{Br}^- > \text{CN}^- > \text{NH}_3 > \text{C}_6\text{H}_5^- \)