Description : Which substance is added for getting yellow colour to glass?
Last Answer : Chromium salt
Description : Substance used to give violet colour to glass?
Last Answer : Manganese dioxide
Description : The substance which is added to glass to increase its hardness?
Last Answer : Borax
Description : The substance used in glass to get blue colour?
Last Answer : Cobalt salt
Description : The substance added to decolourise the glass articles during manufacture of glass is
Last Answer : Manganese dioxide.
Description : Adding which substance gives blue colour to glass? (1) Manganese oxide (2) Cobalt oxide (3) Chromium oxide (4) Iron oxide
Last Answer : (2) Cobalt oxide Explanation: Cobalt is the strongest of the coloring oxides, giving a range of blues in most glasses. It is such a powerful colorant that only a few parts per million is needed to produce a light blue color such as the shade used for certain bottled waters.
Description : A substance which reacts with oxygen giving heat is called a combustible substance. Which one of the following is a combustible substance? a) iron nail b)glass c)stone piece d)wood
Last Answer : d)wood
Description : Can a Cheap Glass Animal Be Made or Are They All Hand-Blown?
Last Answer : All you need to do is create a mold. Anything can be made from a mold.