Electrochemistr...

Corrosion can be an advantage in which of the following cases?

The number of Faradays required to deposit $$1\ g$$ equivalent of aluminium $$(At.wt\ 27)$$ from a solution of $$AlCl_{3}$$ is:

The amount of metal deposited at cathode on passing an electric current of 0.75 amperes in aqueous ferric sulphate solution for 30 minutes will be:(atomic wt. of Fe =56 )

$$pH$$ of the solution in the anode compartment of the following cell at $$25^{o}C$$ is $$x$$ when $$E_{cell}-E_{cell}^{o}=0.0591\ V.  Pt(H_{2})|pH=x||Ni^{2+}(1\ M)|Ni, x$$ is $$1\ atm$$

The charge of an electron is $$ - 1.6 \times {10^{ - 19}}C.$$ The value of free charge on $$L{i^ + }$$ ion will be 

When equilibrium is attained.

Observations the displacement reaction of metals given in the table below

The process in which any electrolyte gets decomposed when electricity is passed through it, is called 

The process of separating ions is called________.

Faraday's laws of electrolysis will fail when