Electrochemistr...

$$6.24 \times 10^{19}$$ electrons is equal approximately to:

In electro-chemical corrosion of metals, the metal undergoing corrosion:

In the electrolysis of $$NiSO_{4}$$ using Nickel electrodes the reaction that takes place at anode is: 

The following are some statements about electrolysis:

I) Involves flow of electrons from anode to cathode

II) Involves no chemical reaction at electrodes

III) Oxidation occurs at anode and reduction at cathode

IV) Anions migrate towards cathode

An iron rod is immersed in $$KCl$$ solution such that half its length is exposed to air and the other half immersed in $$KCl$$ solution. The part corroded faster is __________.

A photo-cell employs photoelectric effect to convert:

Which of the following statements are correct about voltaic cell?
(I) Chemical energy is converted into electrical energy.
(II) Electrons flow from anode to cathode.
(III) Oxidation occurs at anode.
(IV) Anode is negative and cathode is positive.

1 ampere current is passed for 60 seconds into an electrolytic cell. Number of electrons that pass through the solution is :

In corrosion of iron :

In producing chlorine through electrolysis $$100$$ watt power at 125 V is being consumed. How much chlorine per minute is liberated ? Electrochemical Equivalent of chlorine is $$0.367$$ $$\times$$ 10$$^{-6}$$ kg/coulomb: