Fe2+ is more stable or Fe3+?

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F e^{3 +}

compounds are more stable than

F e^{2 +}

compounds because:

Q. Which among the following is stable?

F e^{2 +}, F e^{3 +}

Q. "

F e^{3 +}

is more stable than

F e^{2 +}

."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

Q. Assertion :

{C u}^{+}

is less stable than

{C u}^{2 +}

but

{F e}^{3 +}

is more stable than

{F e}^{2 +}

. Reason: Half filled and completely filled subshells are more stable.

While $F e^{3 +}$ is stable, $M n^{3 +}$ is not stabe in acid solution because:
$(M n^{3 +} + e^{-} \to M n^{2 +}, E^{\circ} = 1.5 V; O_{2} + 4 H^{+} + 4 e^{-} \to 2 H_{2} O, E^{\circ} = + 1.23 V; F e^{3 +} + e^{-} \to F e^{2 +}, E^{\circ} = 0.77 V)$

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