InterviewSolution
Saved Bookmarks
| 1. |
The elements oxygen and sulphur are called chalcogens becauseA. their properties resemble with charcoalB. their properties resemble not only with charcoal but also with halogensC. these are ore forming elementsD. these combine with halogens. |
|
Answer» Correct Answer - C Chalcogens mean ore forming elements because most of the ores are either oxides or sulphides. |
|