selenious acid मीनिंग इन हिंदी

उदाहरण वाक्य

1. Another use for selenious acid is the chemical darkening and patination of copper, brass and bronze, producing a rich dark brown color that can be further enhanced with mechanical abrasion.
2. The United States Department of Justice method for producing the reagent is the addition of 100 mL of concentrated ( 95 98 % ) sulfuric acid to 1 g of selenious acid.