ಕೆಳಗಿನ ಯಾವ ಲೋಹ Fe, Zn, Pb, Ag ಮತ್ತು Pt ಇವುಗಳೊಂದಿಗೆ ಚಿಕಿತ್ಸೆಯಲ್ಲಿ ಲೋಹದ ನೈಟ್ರೇಟ್ ಅನ್ನು ನೀಡುವುದಿಲ್ಲ...

Which of the following metal Fe, Zn, Pb, Ag and Pt do not give a metal nitrate on treatment with concentrated HNO_3 ?

Among the following total number of possible metals present in anode mud, which is obtained by electrolytic refining of copper. Fe, Ag, Au, Pt, Pb, Zn

How many of these metals carbon reduction is used during their extraction. Ag, Au, Fe, Sn, Zn, Pb, Al