molybdena मीनिंग इन हिंदी

उदाहरण वाक्य

1. By 1778 Swedish chemist Carl Wilhelm Scheele stated firmly that molybdena was ( indeed ) neither galena nor graphite.
2. It was not until 1778 that Swedish chemist Carl Wilhelm Scheele realized that molybdena was neither graphite nor lead.
3. Molybdenite the principal ore from which molybdenum is now extracted was previously known as molybdena, which was confused with and often implemented as though it were graphite.
4. Instead, Scheele correctly proposed that molybdena was an ore of a distinct new element, named " molybdenum " for the mineral in which it resided, and from which it might be isolated.
5. Even when molybdena was distinguishable from graphite, it was still confused with a galena ( a common lead ore ), which took its name from Ancient Greek " ", meaning " lead ".