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| Q.23 | In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n+2 (n = 0,1,2,3 etc.)? | |
| Ans | 1. Auguste Laurent | |
| 2. Jacob Berzelius | ||
| 3. Erich Huckel | ||
| 4. Antoine Lavoisier |
Correct Ans Provided: 3
