The correct option is (B) : Meta borate
The blister test is another name for the borax bead test. It is the first test available to identify the presence of particular metals. Cobalt, copper, and nickelate salts are used to provide this test. This test identifies the presence of metals in a sample. Finding the metal ions in salt is done using a straightforward scientific procedure. Here, a little quantity of salt, borax, and a few molten beads on the end of a piece of platinum are combined. The reaction's byproducts are sodium metaborate and boric anhydride. The substance that is employed to find coloured radicals is borax bead.
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.