Match the items in Column I with Column II:
| Column I | Column II |
| A. Diamond to graphite conversion | (i). Short interval of time |
| B. Instantaneous rate | (ii). Ordinarily rate of conversion is imperceptible |
| C. Average rate | (iii). Long duration of time |
Codes:
| A | B | C | |
| 1. | (ii) | (i) | (iii) |
| 2. | (i) | (ii) | (iii) |
| 3. | (iii) | (ii) | (i) |
| 4. | (i) | (iii) | (ii) |
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