The trend in electrode potential $(E^{0})$ values of the 3d series is irregular – True or False?

True

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

False

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A True
Since each individual element has different ionization energy and sublimation energy, we don’t see a regular trend in electrode potential $(E^{0})$ value in d-block elements.
Ionization energy: The energy required to remove the electron from the outermost valence shell from an isolated gaseous atom.
Sublimation energy: The heat energy required to change one mole of a substance from solid state to gaseous state at STP (Standard Temperature and Pressure). This definitely involves the lattice energy which in turn depends on packing. Different elements can have varied structures like fcc or hcp. So there is no particular trend in the electrode potential values of elements placed in the 3d series.

Suggest Corrections

Similar questions

S c^{+ 2} t o C u^{+ 2}

F e^{2 +} + 2 e^{-} \to F e; E^{0} = - 0.440 V

F e^{3 +} + 3 e^{-} \to F e; E^{0} = - 0.036

S c^{+ 2} t o C u^{+ 2}

Given standard electrode potentials:

$F e^{3 +} + 3 e^{-} \to F e; E^{0} = - 0.036 V$

$F e^{2 +} + 2 e^{-} \to F e; E^{0} = - 0.440 V$

The standard electrode potential $E^{o}$ for $F e^{3 +} + e^{-} \to F e^{2 +}$ is:

C u^{2 +} + 2 e^{-} ⟶ C u

E^{0} = 0.337 V

C u^{2 +} + e^{-} ⟶ C u^{+}

E^{0} = 0.153 V

E^{0}

C u^{+} + e^{-} ⟶ C u

Join BYJU'S Learning Program