Why do metal ion having higher reduction potential reduces first??

Open in App

Solution

That is because chemical reactivity of metals decrease as reduction potential decreases. Reducing Power of Metals
Reducing nature depends on the tendency of losing electron or electrons. More the negative reduction potential, more is the tendency to lose electron or electrons. Thus, reducing nature decreases from top to bottom in the electrochemical series. The power of the reducing agent increases as the standard reduction potential becomes more and more negative.

Sodium is a stronger reducing agent than zinc and zinc is a stronger reducing agent than iron.

Element

Na

Zn

Fe

Reduction Potential

-2.71

-0.76

-0.44

Suggest Corrections

Similar questions

Q. Assertion :A metal having negative reduction potential when dipped in the solution of its own ions has a tendency to pass into solution. Reason: Metals undergo reduction.

Q. Find the incorrect statement:
(1) Higher reduction potential of non-metal means stronger reducing agent
(2) Lower oxidation potential of a metal means strong oxidising agent
(3) Oxidation state of oxygen in

O_{3}

- 1

Q. The standard reduction potentials (in V) of a few metal ion/metal electrodes are given below.

The reducing strength of the metals follows the order:

Electrochemical series is a series of elements arranged in increasing order of their reduction potential and $E_{H^{+} / H_{2}}^{0} = 0$ . The metals above $H_{2}$ have – ve reduction potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than $H_{2}$ . Reduction potential of metal depends upon
(i) sublimation energy (ii) ionization energy and (iii) hydration energy of ions.

Which of the following is best reducing agent?

Q. In the electrolytic refining of Copper (electrolyte is

C u S O_{4}

solution + dil

H_{2} S O_{4}

;Pure Cu cathode and Impure Cu anode), metallic impurities having ___ than Cu are deposited as anode sludge.

Join BYJU'S Learning Program

Element	Na	Zn	Fe
Reduction Potential	-2.71	-0.76	-0.44