MCQOPTIONS
Saved Bookmarks
| 1. |
*/*_Blast furnace gas is a very poisonous gas because of its predominantly high __________ content.? |
| A. | H‚ÇÇO |
| B. | CO‚ÇÇ |
| C. | CO |
| D. | CH‚ÇÑ |
| Answer» D. CH‚Äö√á√ë | |