The correct match for the intermediates given in Column P with the reactions given in Column Q is
| Column P | Column Q | ||
| A. | i. | Pfitzner-Moffatt oxidation | |
| B. | ii. | Vilsmeier-Haack reaction | |
| C. | iii. | Ritter reaction | |
| D. | iv. | Swern oxidation |
1
A - iv; B - iii; C - i; D - ii
2
A - iii; B - ii; C-i; D - iv
3
A - i; B - iii; C - iv; D - ii
4
A - iv; B - ii; C - i; D - iii