Given below are few statements regarding electrode potentials. Mark the correct statements.
(i) The potential associated with each electrode is known as electrodes potential.
(ii) A negative 
means that the redox couple is a stronger reducing agent than 
couple.
(iii) A positive 
means that the redox couple is a weaker reducing agent than 
couple.
Text Solution
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(i) Electrodes potential is the potential associated with each electrode in a cell.
(ii) A negative 
means that the tendency of the element to get reduced is less than the standard reduction potential of hydronium ions into hydrogen gas. Thus the redox couple will tend to get oxidise easily and is a stronger reducing agent than 
couple.
(iii) A positive 
means that the tendency of the element to get reduced is more than the standard reduction potential of hydronium ions into hydrogen gas. Thus the redox couple will tend to get reduce easily and is a stronger oxidising agent or weaker reducing agent than 
couple.
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