00:00Which substance is known as the universal solvent?
00:07Answer B. Water.
00:09Which vitamin is also known as ascorbic acid?
00:17Answer C. Vitamin C.
00:20What is the chemical formula for ozone?
00:27Answer BO3.
00:29Which element is used in the production of stainless steel to prevent rusting?
00:38Answer A. Chromium.
00:40Which acid is present in car batteries?
00:48Answer A. Sulfuric acid.
Commentaires