निम्नलिखित सेल में इलेक्ट्रॉनों व धारा की दिशा बताओ -
`Zn|Zn^(2+)||Fe^(2+)|Fe`

Write the cell reaction for the cell Zn"|"Zn^(2+) (IM) "||"Fe^(3+)(IM)Pt

The standard electrode potentials of some electrodes are : {:("Electrode",Zn^(2+)"|"Zn,Cd^(2+)"|"Cd,Ag^(+)"|"Ag,Fe^(2+)"|"Fe),(E^(@)(V),-0.76,-0.40,0.80V,-0.44V):} Which of the following cells are feasible and give their E^(@) cell ? (i) Zn|Zn^(2+)||Cd^(2+)|Cd (ii) Fe|Fe^(2+)||Zn^(2+)|Zn (iii) Cd|Cd^(2+)"||"Ag^(+) (iv) Fe|Fe^(2+)"||"Ag^(2+)|Ag

What is a ore . Give the of Al,Zn, Zn, Fe, Cu.