Question

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 ${E^o}$ means that the redox couple is a stronger reducing agent than the ${H^ + }/{H_2}$ couple.
(iii) A positive ${E^o}$ means that the redox couple is a weaker reducing agent than the ${H^ + }/{H_2}$ ​couple.
(A) (i) and (ii)
(B) (i) and (iii)
(C) (ii) and (iii)
(D) (i), (ii) and (iii)

Answer 1

Electrochemistry is the investigation of substance measures that makes electrons stream. The progression of electrons can happen just when one substance loses electrons and another substance acknowledges it. When there is loss and gain of an electron by substances, redox response happens. This is the way redox response is identified with electrochemistry.

Complete Step By Step Solution:
I) Electrodes potential is the potential related with every anode in a cell.
ii) A negative ${E^o}$ implies that the propensity of the component to get decreased is not exactly the standard decrease capability of hydronium particles into hydrogen gas. Subsequently the redox couple will in general get oxidized effectively and is a more grounded diminishing specialist than ${H^ + }/{H_2}$ couple.
iii) A positive ${E^o}$ implies that the inclination of the component to get decreased is more than the standard decrease capability of hydronium particles into hydrogen gas. Consequently the redox couple will in general get lessened effectively and is a more grounded oxidizing specialist or more fragile diminishing specialist than ${H^ + }/{H_2}$ couple.

Additional Information:
RULES FOR BALANCING REDOX REACTION USING OXIDATION NUMBER RULE
1.Write the condition , demonstrate the oxidation number of every component and distinguish the component which is going through change in oxidation number. Identify the oxidizing just as decreasing specialists.
2.Multiply the equation of the oxidizing and diminishing specialist by appropriate whole numbers in order to even out the all out increment or diminishes in oxidation number. Balance all particles other than $H$ and $O$ , at long last equilibrium $H$ and $O$ by adding water atoms.

Note:
Extraction of metals: should be possible by utilizing redox response ideas.
Electrochemical cells : these sorts of batteries dependent on redox responses are generally utilized in our everyday life. Photosynthesis : Green plants secretive $C{O_2}$ and water in glucose in presence of daylight and chlorophyll is a redox response.