Для каких элементов характерна аллотропия?
1) углерод; 2) азот; 3) олово; 4) иод; 5) хлор.

  1. 1, 2
  2. 1, 3
  3. 1, 4
  4. 3, 5
16 / 50 (32%)
Question 16 of 50
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