electrochem Flashcards
The highest reduction potential in the electrochemical series is of F2 and its value is:
+2.87 V
To balance chemical equation by ion-electron method in the basic media we add
we add the double number of OH– ions to balance the oxygen atoms.
Oxidizing power of an element depends upon its:
electrode potential. The electrode potential shows its tendency to give and accept electrons.
Electrolysis is the process in which a chemical reaction takes place at the expense of:
Electrical energy
electrical energy is converted to chemical energy.
Coinage metals (Cu, Ag and Au) are the least reactive because they have:
Positive reduction potential
As temperature increases in electrolytic cell
At high temperature, metallic conduction decreases due to increase in resistance and electrolytic conduction increases due to increased energy of ions.
To balance oxygen in ion electron method in acidic solution we add:
● In acid solutions use H2O to balance O and H+ to balance H.
Function of salt bridge is to
Salt bridge prevents accumulation of positive charge in anode & accumulation of negative charges in cathode.
the common product at both electrodes in lead storage battery is
PbSO4
what type of electrolytes are the strongest?
group 1 & 2 elements
and nitrates
the cathode in lead storage battery is made of
lead oxide
oxidation no of Hydrogen in metal hydrides
-1
